Best Human Touch Power Lift Recliners For Elderly in 2026

【DUAL OKIN MOTOR】With dual OKIN motor, the backrest and footrest of this power recliner can be adjusted individually. The chair helps seniors to stand up with a 4-button hand controller, which is easy to use. It's ideal for people who have back pain or mobility issues. NOTICE:This recliner comes with a power supply not battery back up.

【INFINITE POSITION】The position lock of the lift chair is INFINITE, so you can recline to almost any angle within the range (105° - 180°) and stop it at any time. This feature allows you to adjust the reclining angle freely and choose a perfect position that meets your unique needs. Take this lay flat recliner home and enjoy a relaxing napping time!

【LUMBAR HEATING & BACK MASSAGE】A remote controls the heating function and the massager (including 4 nodes). Isn't it better to watch TV or read books while having a massage at the same time? And the heat pad works perfectly with your favorite blanket - both to bring you a warmer winter. For safety reasons - some people will forget to turn it off, the massage & heat will automatically stop working after about 15 minutes, and you can turn it back on if you need to continue the massage or heat.

Power Lift Assistance: Counter-balanced lift mechanism with a TUV certified actuator pushes the entire chair up to assist the user stand up easily without adding stress to the back or knees, smoothly adjust to the lift or reclining position you prefer by pressing two buttons on the remote control.

Easy to Assemble and Operate: Depending on the unique structure and wiring design, it's simple to assemble the chair, and also no tools are needed (about 15 minutes for a novice). You can adjust the chair to a lift or reclining position you prefer by pressing two lighted buttons of the new design remote control.

Full-body Vibration & Lumbar Heating: It comes with 8 vibrating points around the chair and 1 lumbar heating point. Both can be turned off at a fixed time of 10/20/30 minutes. (Heating function works separately from vibration.)

CONTEMPORARY POWER LIFT RECLINER: Style and functionality merge together in this dual motor lift chair recliner, With just the touch of a button, the power lift eases you back and elevates your legs for the ultimate lounging experience

SMOOTH BROWN UPHOLSTERY: Saddle brown upholstery looks like leather, but is actually thick poly fiber with a cozy feel-good touch. Designed for comfort with a high back, thick cushions and sturdy corner-blocked framed with metal reinforced seat

SLOW POWER MOVEMENT: Estimated time to complete a full cycle with 110V from fully reclined to completely lifted is 1 minute. To move from reclined to upright takes 14.5 seconds, ideal for seniors or disabled individuals

Medium Power Lift Recliner : The size of this chair is suitable for most people.Thickening padding will provide unexpected sense of wrapping. Built-in springs in both of back and seat, thick cushion will give you the ultimate comfort sitting in the chair. (Recommended Height: 5'1"-5'9")

Power Lift Assistance: Counter-balanced lift mechanism with a TUV certified motor pushes the entire chair up to assist the senior stand up easily without adding stress to the back or knees, smoothly adjust to the lift or reclining position you prefer by pressing two buttons.(Max reclining angle: 140°)

Lumbar Heating & Full-body Vibration : By selecting massage intensity and speed, target select the vibrating points to relax tired muscles or aid the recovery from surgery. Meanwhile it can also be timed. (The heating function works separately from the vibrating function.)

💺【Non-toxic Material】 - We insist on choosing environmentally friendly timber with higher production costs. All wood boards used in our products are formaldehyde-free, conform to the P2 Requirement of California Air Resources Board(CARB). We committed to protect the health of the elderly who chooses our electric lift chair.

💺【Power Lift Assistance】 - Our powerful and UL approved silent lift motor, have better performance, the more quiet operation, longer service lifespan.Our lift chair can pushes the entire chair up to help the senior stand up easily without adding stress to back or knees. Our lift recliner chair reclines up to 150 degrees,smoothly adjust to lift or reclining position you prefer by pressing two buttons on the remote control, which is easy to operate for people of all ages.

💺【Heated Vibration Massage】 - This chair come with 8 powerful vibration motors,4 custom zone settings and 5 modes. In addition, there are timing of remote control and waist heating functions.Through vibration and heat to achieve massage effect , making you feel relaxed.Armrests are equipped with cup holders and side pockets, which is convenient. Extra USB charging port will allow you charging your Low Power devices during you sitting or reclining.

Sturdy and Functional Power Lift Recliner: Modern style and functionality merge together with single motor and heavy duty mechanism, lay back or lift and tilt to stand, smoothly adjust to any customized position which provide ultimate lounging experience. This is an upgraded lift chair, larger in size than before. If you start using it, you will love it.

Comfortable and Antiskid Upholstery: Overstuffed pillow designed on back, seat and armrest for support and comfort with a high back, thick cushion and high grade antiskid upholstery, provide a very comfortable sitting feel and enhances safety.

Easy Assembly and Easy Using: Less 10 mins installation, Search” Canmov Lift Chair” on YouTube for assembly guide video, all functions used by only two buttons remote control. Overall size: 38.5"W x 38.5"D x 42"H, Seat Height – 20.4", its max weight capacity is about 300lbs. Tips: The lift chair comes with 2 boxes and we ship them on the same day but the carrier may deliver them to your door on different days.

[Power Lift and Recline] The motor equipped recliner can lift you up when you want to get up from your chair, by pressing a button on the remote control, it lifts or reclines smoothly and quietly, it enables you to stand up easily without putting force on your back or knees. And it features reclining to different angles by electric control, you can lie down in a cozy position and take a rest, or TV watching, and the footrest can be extended and retracted that allows you to stretch your body.

[Massage and Heating] The four points massage (back, lumbar, thigh, leg) with five adjustable modes and two intensity options, offers you a full body massage at your own home. It has heating function on lumbar part while massaging, which will be good for waist pressure relief and blood circulation, taking away the stress and tiredness. There is timer function in 15/30/60 minutes which is convenient for you to set massaging time.

[Classic Style and User-friendly] Designed in classic style with smooth PU leather surface, wide seating space, and thick sponge padded back, armrest and bottom seat, and the slightly raised headrest can well support your neck when you lie down. There is a pocket and cup holder on either hand, which is convenient for small things and books storage, or tea drinking at hand. If you drop water on it, it is easy to wipe with a clean dry cloth.

Made of solid wooden frame and faux leather, cup holders and pockets for putting TV remote or storage things

Power lift function could push the entire chair up from its base to help the senior to stand up easily

Recline the chair and release the built-in foot rest, fully powered by the remote, back and footrest work together

POWER LIFT ASSISTANCE: Counter-balanced lift mechanism with TUV certified motor pushes the entire chair up to assist the senior stand up easily without adding stress to back or knees, smoothly adjust to lift or reclining position you prefer by pressing two buttons.

SMALL SIZE & DIVIDED DESIGN: By analyzing the physical traits of small people, we shorten the length of backrest to 27” and tested the height of padded headrest for ensuring comfort. The divided design of the backrest really provides great support for human body.

CLEAN & EASY MAINTENANCE: As the use of high-quality faux leather for upholstery material, caring for the chair is very easy-it can usually be cleaned once a week by wiping gently with a microfiber cloth and a solution of water mixed with a small amount of dish soap.

POWER LIFT & RECLINE- The electric recliner chair was powered by a TUV certified motor mechanism for smooth lifting and reclining; Use remote to adjust to the optimal position; Offers immense relaxation for adults, the elderly, the disabled and pregnant women when watching TV, reading books, or resting (Recommended height ≤5'7")

VIBRATIONAL MASSAGE & LUMBAR HEATING- This power lift recliner chair comes with 8 vibrating points and lumbar heating to comfort your back, lumbar, thighs, and legs; Offers 5 modes including pulse, press, wave, auto, and normal; Switch the massage on or off with the power button

REBOUNDED FOAM & DELICATE FABRIC- Lean back into the unique, bouncy foam to enjoy amazing comfort; This power lift recliner chair for elderly is covered in soft, delicate fabric that is durable yet features soft hand feel; The head padding is ergonomically designed to relax your head and neck

POWER LIFT CHAIR FOR ELDERLY: Counter-balanced lift mechanism pushes the entire chair up to help the senior stand up easily without adding stress to back or knees, smoothly adjust to any customized position letting you stop the lift at any positions you prefer. Supports up to 330 lbs,it’s ideal for people who have leg/back problems or people who after surgery. 25000 times heavy-duty safe quality tested power lift and recline motor.

MASSAGE AND HEAT: Electric recliner with extending footrest, with 8 points massage and vibration, as well as lumbar heating. 5 massage models, 4 massage parts and 3 time models to choose by the remote control.

RECLINER CHAIR FOR LIVING ROOM: 90 to 150 degrees adjustable with backrest, headrest, footrest. Just press the button under the right armrest to stop at any positions you want. Best recliner chair for reading, TV watching,napping.Ergonomic chair design, soft round padding on both arms offer extra comfort.High density elastic sponge. Durable velboa slipcover. This high quality sofa lounge can make you feel very comfortable and help you relax fully.

DEPENDABLE COMFORT: This versatile power lift recliner chair is the perfect choice for a mainstay in your living space, with built-in cupholders that allow for further lounging convenience

POWER LIFT DESIGN: Operating this chair is made easy with adjustment functions that work at the push of a button; an easy-to-reach button on the side lets you tilt forward or recline

MASSAGE + HEAT: Equipped with a remote control and 3 massage modes that target your back, lumbar, thighs, and lower legs at high or low intensity, plus 2 heat settings that radiate warmth from the lumbar area

Power Lift Assistance : Power lift and recline assist system, help the elder stand up easily. The foot rest and seat back can be adjusted at multiple angles by remote control, smoothly adjusting the position you want when watch TV, read books or take a nap.

Massage And Heating Function : Eight vibration nodes and one waist heating node, massage your neck, back, waist and legs in all directions. Five massage modes and two levels of massage intensity you can switch at will, relax your body and mind and eliminate fatigue.

Upgraded Comfort : Covered high-quality and skin-friendly PU leather, thickened cushion, backrest and hand rest, filling with high-density sponge, offering you more comfy. The firm steel structure makes more sturdy to ensure safety when you enjoy it.

EASY TO OPERATE: Powered with a TUV-certified motor mechanism so users can smoothly lift or recline it to the desired position using the two buttons on top of the remote control; It offers immense relaxation for adults, the elderly, the disabled and pregnant women when watching TV, reading books, or resting

VIBRATIONAL MASSAGE: Recliner massage chair features 8 vibrating points to cover your back, lumbar, thighs and legs along with the lumbar heating function; It offers 5 massage modes - pulse, press, wave, auto, normal; Switch the massage on and off with the power button (Heating function cannot be used alone)

SOFT AND COMFORTABLE: Back support features special, bouncy foam for you to relax comfortably and provides durability for years to come; The faux leather is waterproof and easy to clean with damp cloth; The head padding is ergonomically designed to relax your head and neck

【Good Assistant Power Lift Recliner】The power lift recliner chair provides comfortable seating and assistance for those who may need a little help getting out of their seat. Controlled by a side button to help the sick, senior or elderly people to stand up easily without putting pressure on their backs or knees, smoothly adjust to lifting or reclining position you want. If you are looking for a gift for your parents, it's a nice choice for family on Mother's Day, Christmas, New Year days, ect.

【Massage and Heating】This power lift recliner chair with four points massage (back, lumbar, thigh, leg) with five adjustable modes and two intensity options, offers you a full body massage at your own home. Backrest with lumbar heating function, will give extra comfort and helping to improve chronic lumbar diseases. There is a timer function in 15/30/60 minutes which is convenient for you to set massaging time.

【Safety and User-friendly】All wood boards used in this power lift recliner are formaldehyde-free. Two extra side storage bags to hold remote controls, magazines and so on, great for watching TV, reading and napping. The power recliner chair also with USB charging function on the right armrest, allow you to charge your devices(Mobile Phone, iPad) during you sitting or reclining.

[Longer backrest and deeper seats] : By analyzing the physical characteristics of larger men, we designed a wide electric recliner that best fits most older Americans. The 25-inch backrest length works for most people. The 22.3 "seat depth provides perfect support for your entire hips and legs.

[Power lift recliner] : You can control the lift or tilt of the electric recliner by pressing the side button, which means you can get any position you want, whether it's tilt or lift between 45 and 150 degrees. The lifting chair is driven by electric mechanism, pushing the whole chair up, working smoothly and quietly, helping the elderly stand easily. It is also ideal for people with balance problems after leg or back surgery.

[Breathable leather with breathable microholes] :Compared with linen recliners, PU leather recliners are easier to clean and more breathable. PU leather with breathable pores has good air permeability, moisture absorption and sweat removal ability. Even in the hot summer, our electric recliner can still provide a good experience for you.

【8 Point Massage & Lumbar Heating】: This lift recliner comes with 8 vibrating points, 4 massage areas (back, lumbar, thighs, legs), 5 massage modes (pulse, press, wave, auto, normal) and 2 intensity levels, meeting all your demands of different massages. And lumbar heating function, which works separately with vibration, helps to relax your stiff muscles.

【Power Lift Recliner Design】: Enjoying with powerful lift motor, our lift chair will be smoothly adjusted to any customized position and stop lifting or reclining easily. So the entire chair could up to help the senior stand up conveniently without adding stress to knees. With lift and recline remote control and button dual control, you can operate the chair in an ideal way.

【Comfortable Upholstery & Sturdy Construction】: High quality metal frame and padded high density sponge ensure long-term service, so that the reclining chair is strong enough to withstand the weight of 330 lbs. Smooth and comfy PU cover will give you comfortable touching experience and high density sponge filled in provide with great support.

💺Extended Backrest & Deeper Seat: By analyzing the physical traits of big people, we designed a wide power lift recliner chair that is most suitable for most American seniors.The backrest length of 25.6 inches is suitable for most people. The depth of seat 20.9 inches can provide perfect support for your entire hips and legs. Tips: If you have any concerns regarding your health, consult your doctor before using the product.

💺Power Lift Recliner Chair: You can press the side button to control the lift or recline of the recliner chair, which means you can get any position you want, whether it's reclining between 110-150 degrees or lifting. The lift chair is powered by electric motor mechanism to push the entire chair up, working smoothly and silently to help the elderly stand up easily. It’s also ideal for people who have balance problems with legs or back, or who after surgery.

💺Massage & Lumbar Heat: Equipped with 4 powerful massage parts (back, lumbar, thighs, legs) and 5 massage modes for selection, each massage point can be operated individually. There is timer function in 15/30/60 minutes which is convenient for you to set massaging time. Add 2 lumbar heat points to promote blood circulation throughout your body, providing a full body relaxation!

❤【Soft Faux Leather Upholstery】This electric recline chair is filled with thick and high resilience memory sponge covered by faux leather with comfortable touch feeling. Soft faux leather surface is easy to clean by wet cloth with superior comfort and aesthetics.Overstuffed pillow designed on back, seat and armrest for support, the lift recliners provide a very comfortable sitting feel and enhances safety.

❤【Upgrade Multiple Massage Function】With 8 points massage (back, lumbar, thigh, leg) with 5 adjustable modes and 2 intensity options, the massging recliner offers you a full body massage relaxing at your own home. Also the power lift chair has heating function on lumbar part while massaging, which will be good for waist pressure relief and blood circulation, taking away the stress and tiredness. There is timer function in 15/30/60 minutes which is convenient for you to set massaging time.

❤【Powerful Lift Recliner】With single motor and ergonomic design, the lifting recliner is easy to lay back, lift or tilt to stand. It smoothly provides ultimate lounging experience for reading, watching TV and sleeping.Also the massage recliner quietly pushes the entire chair up to help the senior stand up easily without adding stress to back or knees, letting you stop the lift at any positions you prefer and great ideal for elderly and the person who are recovering from illness.

Real Leather.

Full-body Vibration & Lumbar Heating-This electric recliner has 8 vibration points,covers the back,lumbar, thighs and legs,with lumbar heating function,can be better relaxed,eliminate stress and fatigue,helps to further improve blood circulation in the lumbar.

Power Lift Function-with TUV certification,you can press the button on the top of the remote control to control the lift or tilt of the chair,whether it’s tilting or lifting between 90-160 degrees,whether it's watching TV, reading a book or taking a break,all are ideal for adults, the elderly, the disabled, and pregnant women.

Perfect Assistant for Elderly:If you are looking for a gift for your family,Comhoma reclining chair is a perfect choice. The lift chair can help seniors stand up and sit down by the hand controller, ideal for people who have leg/back problems or people who after surgery. 

Infinite Position:The power lift recliner chair can smoothly adjust to lifting or reclining position you want from 45° to 160°.The position lock of the lift chair is infinite. It is powered by motor thus it is extremely smooth and secure during lifting.

Massage & Heating:The heated massage chair comes 8 vibrating points massage coverage to the back, waist, thighs and legs and 1 lumbar heating point. It has 5 adjustable modes to meet your different massage needs. Let your body get a full relaxation and rest after the working or studyding.

🐣🐥Lift Assist Recliner Chairs - Designed with independant UP/DOWN control Panel, the power recliner helps the user stand up or lie down at ease by simply pressing 2 buttons. The USB Port is convenient for charging phones, ipads, etc

🐣🐥Massage & Heat Functions - It comes with 8 vibrating nodes(Back/Lumbar/Thighs/Legs) and 1 heating part, allowing you to enjoy incredible coziness and relaxation. 5 modes of vibration are available to cate for most demands. 2 side pockets for remote make it suit for different using habits

🐣🐥Outstanding Design - Featured by classic American-style design and delicate brass rivets on brinks, this recliner looks quite noble, elegant and distinct. It's gonna catch a lot attention wherever you put it in. Besides, the accompanied USB Port is so convenient to charge your phone when in need. A piece of exquisite furniture combines both esthetics and practicability

【Lift & Recline】Our power lift recliner is equipped with silent lift motor, which can push the chair up and make it easy for elderly to get up. It can recline up to 150 degrees, just press the button, you can rest in a comfortable position or watch TV, and the footrest can stretch and retract to get your body stretched.

【Heating & Massage】This power recliner chair has multiple vibration massage, which offers a full-body massage in your own home. The waist heating function accelerates blood circulation and you will get relaxed. These functions can be achieved by the remote, you can choose different modes or intensities per your preference or different status.

【Comfortable Design】Thick and soft sponge covered with smooth PU leather and combined with wide seat, the lift chair gives you the comfort and support where it's needed the most. Use this recliner with cup holder, adjust to your preferred position, you can enjoy a movie with drink or relax with coffee.

POWER LIFT ASSISTANCE - Counter-balanced lift mechanism with TUV certified actuator pushes the entire chair up to assist the user stand up easily without adding stress to back or knees, smoothly adjust to lift or reclining position you prefer by pressing two buttons on the remote control. If you are looking for a gift for your parents, it's a nice choice on Mother's Day, Christmas and New Year.

SAFETY & HUMANISTIC DESIGNS - We insist on choosing environmentally friendly timber with higher production costs. The power lift recliner chair has a USB port in the remote control for charging of electronic devices, 2 cup holders to meet your daily needs, 2 side pockets and 2 front pockets to keep small items within reach. We are committed to integrating multiple humanized designs to create more convenience for your life.

SUPERIOR FABRIC & OVERSTUFFED PAD - The lift chairs recliners for elderly are made of soft velvet, which is very comfortable and with a nice finish and stitching. The backrest, seat cushion armrests and footrest are filled with high-density sponge, which provides you ultimate comfort and support, just like the whole body is wrapped up in chair, perfect for reading, relaxing or napping.

Construction: Highly Durable steel frame with thicker foam padding, better to enjoy your favorite TV shows or rest. The construction and ergonomic designed of this Polar Aurora Gaming Recliner Chair is very sturdy and easy to assemble which makes it highly durable. You and your family can use it for many years.

Product Details: Overall Dimension: 31.8" (L) X 28.3" (D) X 43.3" (H), Extended Dimension: 31.8" (L) X 62.9" (D) X 19.6" (H), Seat Dimension: 20.8" (L) X 21.2" (D), Maximum capacity: 300 LBS.Additionally, we provide a detailed instruction with numbered steps to help you install this massage chair effortlessly and save much time.

High-Quality Material：Single Recliner Chair made of high-quality PU leather which is comfortable skin friendly and easily cleaned, and high-density thicker sponge which is high resilience and high permeability. The Massage Recliner Chair ensure long-term service, especially for people after a surgery or with back problems.

【Bigger & More Comfortable】We designed this recliner than the average recliner is bigger and longer, 25 inches of backrest length, 22.3 inches of seat depth, high-density sponge with breathing leather material, experience the comfort of the clouds.

【Genuine Leather Surface】This electric lift recliner is made of genuine leather contact surface to provide a more comfortable contact feeling, thick cushion with high-density sponge cushion, strong support, high comfort, with a strong steel frame structure, solid and durable.

【Double OKIN All-Copper Motor】The OKIN motor used is quiet and efficient in work, and has a lower failure rate than ordinary electric recliners.The upgraded design of 2 motors can control the backrest and footrest independently to achieve push up the whole chair and help the elderly to stand up easily. It is perfect for people with leg/back problems or those who are pregnant or recovering from surgery.

【OKIN Dual Motor】 Unlike traditional chairs, the electric lift chair uses the German OKIN silent motor for quality assurance, safety and effectiveness. The dual motor design operates independently, allowing you to adjust the angle of the backrest and footrest separately to easily get any position you want with the 4-button controller. The lift function pushes the whole chair upwards to help you stand up easily without putting pressure on your back or knees.

【Massage & Vibration】: Power lift recliner comes with 8 vibration nodes on back, lumbar, thigh and leg; 5 vibration modes (pulse, press, wave, auto and normal) with 3 intensities from low to high. One heating system on lumbar area;temperature controlled heating, the temperature is 113℉~140℉, when it reaches 140℉, it will automatically cut off the power, and continue to cool to 113℉ before heating.All the features can be controlled by the remote controller.

【180°Lay Flat Positioning】The chair backrest can recline from 110° to 180° and the chair footrest can be raised from 90° to 180°. The extending footrest and reclining function allow you to fully stretch and relax while reading, watching videos and sleeping. The fully expanded length of the chair is 68 inches, please make sure the length is suitable for you.

【TUV Approved Motor】 - The lift motor of the chair have obtained TUV certification and have better performance, the more quiet operation, longer service lifespan. Our power lift recliner chair reclines up to 150 degrees, the footrest and backrest are extended or retracted simultaneously. You can smoothly adjust to customized position and stop at any position, which provide ultimate lounging experience.

【Massage & Lumbar Heat】 - With 8 built-in vibrating points (back, lumbar, thigh, leg) with 5 adjustable modes and 2 intensity options, the massging recliner offers you a full body massage relaxing at your own home. There is timer function in 15/30/60 minutes which is convenient for you to set massaging time. Add a lumbar heat point to promote blood circulation throughout your body, providing a full body relaxation!

【Delicate Fabric & Oversized Appearance】Larger-size padded cushion with wider armrests, thicker electric recliner back and seat provide you ultimate comfort and support, just like the whole body is wrapped up in chair. Covered fabric is soft to the touch and durable, which is functional for optimal comfort, perfect for reading, sleeping or napping.

【8 Point Massage & Lumbar Heating】Our recliner chair is equipped with a wire remote control. It with 8 Point massage has 2 different vibration intensities and 5 adjustment modes. You can have a full body massage to relax the upper back, lower back, thigh and lumbar. It also has a heating function, which can further promote blood circulation during the massage process.

【Power Lift Assistance】The powerful single motor design enables the lift chairs recliners for elderly to be adjusting to any position smoothly (Angles: 45°- 150° ), it can lay back or tilt to stand which can help the elderly stand up easily. The wide armrests and comfortable headrest and backrest fit your body completely. The side pocket design provides a place for placing the remote control and other small objects.

【High Quality Metal Frame】This tall man recliner uses a stronger steel frame than other chairs, each steel frame has undergone strict testing procedures, so it is more durable and stronger. It that can easily support your body and has a long service life. The padding of high-density soft sponge will bring you great comfort, it can perfectly wrap your body and help you relax your muscles.

【Electric Lift】Powered by silent motors, the whole chair can be pushed up and work steadily, helping users to stand up easily and free from extra pressure on back and knees. With two buttons on the remote control, you can get any position you prefer at any time, whether lifting or lying down. It's an ideal choice for the elderly, people with mobility problems or after surgery.

【Massage and Heating】This recliner has 5 pre-set massage modes (pulse, pressure, wave, auto and normal), 4 massage areas (back, waist, thighs, legs) and 3 massage intensities (high/medium/low) to meet different massage needs. You can use the time remote control to set the running time of 5-25 minutes, the waist heating function can promote blood circulation to further relieve fatigue and release stress.

【High-quality Workmanship】The ultra-thick and fluffy padding makes the backrest and cushion more comfortable with high elasticity, providing more secure support to wrap your body, soft and smooth quality leather surface is breathable, durable, easy to clean and maintain, bringing the best touch and excellent aesthetics. Sturdy metal frame can withstand a maximum weight of 300 pounds, supporting prolonged use.