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Envion Therapure TPP440 Air Purifier – Compare Air Purifier Price for Allergies and Asthma

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Set Alert for Product: Therapure 440 UV Germicidal, HEPA Style Air Purifier, 3-Speed, Black - $149.00
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☑ 3 air cleaning technologies
☑ 24-hour timer
☑ Digital display
☑ Compact design
☑ Hemispheric-HEPA filter
☑ Energy Efficient Asthma air purifier

Last updated on May 11, 2020 2:54 am
Envion Therapure TPP440 Air Purifier – Compare Air Purifier Price for Allergies and Asthma
Envion Therapure TPP440 Air Purifier – Compare Air Purifier Price for Allergies and Asthma

Score & Analysis

Features Score



Price Range : $100 - $200

Group Rank : #20( out of 27 Products )


Average score in the group


Best score in the group



Overall Rank : #52( out of 85 Air purifier )


Average score in Air purifier


Best Score in Air purifier



Features Group This
Best Average Remarks Best Average Remarks
CADR (Clean air delivery rate) 291 176 below average
N/A 184.33 below average
CADR Dust 298 160.59 below average
141 164.7 below average
CADR tobocco smoke 291 154.97 Above average
158 163.45 below average
CADR pollen 343 170.49 below average
158 176.64 below average
Air changes per hour 5 4.29 below average
3 2.8 Above average
Energy consumption [Watt] 32 88.4 Above average
N/A 65.6 below average
Room Size 500 276.15 Above average
395 332.98 Above average
Noise level [db]-Air purifier 23 44.78 Above average
N/A 41.09 below average
Airpurifier weight [lb] 3.35 14.46 Above average
9.5 13.22 below average
Warranty [Months] 60 40.44 below average
12 42 below average


Features of Therapure TPP440 Asthma Air Purifier with UV Light

Indoor pollution can be the reason behind various illnesses. Allergies and Asthma symptoms are the most common health issues resulting out of unhealthy air in the houses. But with the Envion Therapure TPP440 air purifier, you can rest assured about clean and pure air circulating in the house.

This asthma air purifier is a modern-day purifier with some very effective features. It captures several pollutants from the air like smoke, pet dander, molds, germs and viruses, cooking odors, etc. Thus, you can enjoy clean air in the comfort of your homes.

Photo Catalyst Filter

The Therapure air purifier with UV light comes with a 3-stage filtration process which includes a Photo Catalyst Filter. The filter absorbs all toxic fumes, VOCs, and chemicals from the air. This renders the air clean and smelling fresh. Thus you get pure air at all times within your home. So, if you are asthmatic or allergic, this air purifier for asthma has got you covered completely.

UV Light

An additional feature of this air purifier is the optional UV light. This feature uses UV germicidal technology to clean and sanitize the air. It helps to eliminate various germs and bacteria from the air. Thus, the air that circulates is free of disease-causing germs. You can control the UV function with a button and switch it on/off whenever you want.

High-performance HEPA filtration system

This Envion asthma air purifier consists of a powerful HEPA Filter. The filter ensures that 98% of various airborne pollutants as little as 0.3 microns get captured. These pollutants include dust, hair, pet dander, pollen, mold spores, etc. This helps to give you maximum protection indoors. The patented hemispheric HEPA filter takes care of the smallest particle in the air.

Digital Display

The Envion Therapure TPP440 air purifier comes with an easy to use digital display. The functions on the display include on/off switch, 24-hour timer, fan speed, and UV/VOC controller too. Thus, you can be in full charge of the device at all times.

Filter Clean Indicator

Another great feature of this Envion air purifier is that there is no need to replace the filter. There is an indicator light on the device which lights up to let you know that it is time to clean the HEPA filter.

Price History

Price history for Therapure 440 UV Germicidal, HEPA Style Air Purifier, 3-Speed, Black
Latest updates:
  • $149.00 - April 28, 2020
  • $129.99 - April 7, 2020
  • $94.80 - March 29, 2020
  • $90.06 - March 16, 2020
  • $77.00 - February 19, 2020
  • $88.00 - January 25, 2020
  • $108.04 - January 5, 2020
  • $88.00 - December 22, 2019
Since: November 25, 2019
  • Highest Price: $149.95 - November 25, 2019
  • Lowest Price: $77.00 - February 19, 2020

Additional information

Specification: Envion Therapure TPP440 Air Purifier – Compare Air Purifier Price for Allergies and Asthma



Mold spores



Bacteria and viruses

Chemical and gas fumes

Odros and smells

Pet dender

CADR rating

CADR (Clean air delivery rate)




CADR tobocco smoke


CADR pollen


Air changes per hour


Energy consumption [Watt]


Room Size


Noise level [db]-Air purifier


Filters & Sensors
Hepa fliter

True hepa Filter

Air quality sensors

Carbon filter

Filter replacement indicators


Washable pre filter

Other useful
Carrying handle


Digital control

Night light

Programmable timer

Technology-Air purifier
0.3µm particle removal (%)


Antimicrobial treatment

Ozone free

Photocatalytic oxidation

Plasma wave technology

Airpurifier Height [inch]


Airpurifier Length [inch]


Airpurifier weight [lb]


Airpurifier Width [inch]


Warranty [Months]


Wireless controls

Amazon Alexa-Air

Google Assistant-Air

App Control-Air

Remote Control-Air

Voice Control-Air


Does this Envion air purifier add to noise pollution?

No, this air purifier is silent and does not add to any kind of noise pollution. You can use it in your homes and offices too without any disturbance

Is this Therapure air purifier with UV light useful for pets too?

Yes, the air purifier is capable of capturing several airborne contaminants including pet dander and odor too. Thus, if you have pets in your house, this purifier can help you to get rid of pet hair and odor. By keeping the air free of impure pollutants and particles, you can ensure that you and your family members stay healthy and breathe quality air.

At what intervals should I change the filters of this asthma air purifier?

There is no need to change the filter of the air purifier, as the HEPA filter is a permanent type. It can be cleaned with a vacuum every 4 weeks for effective functioning.

Can the pre-filter be washed and cleaned? Can it be reused?

There is no pre-filter in the purifier.

How to maintain the Therapure TPP440 air purifier with UV light?

For maintaining the Therapure air purifier, the HEPA type filter must be cleaned every 4 weeks. You can vacuum it; however, avoid using any kind of cleaner or water. The outer surface of the purifier can be cleaned with a soft damp cloth and little dishwasher soap.

How long will the pre-filter last?

There is no pre-filter used in this air purifier. Instead, there is a permanent HEPA filter used which can be cleaned and reused.

Which place is best suited for maximum performance of this asthma air purifier?

The best place to keep this Therapure TPP440 air purifier is near the source of pollution. This gives maximum effect. It is also recommended to place the purifier at least 12 inches away from the wall, for ensuring proper airflow.

What impurities can this Therapure air purifier eliminate?

The HEPA filter removes minute particles as small as 0.3 microns like dust, pet dander, mold, etc. And the Photo Catalyst filter eliminates VOCs like toxic fumes, tobacco smoke, and odors from various sources. Lastly, the UV light kills germs and bacteria in the air. Thus, maintaining optimum health of you and your family.

How much does the purifier weigh? Is it portable?

11.25lbs is the weight of this air purifier. It is only 2 feet tall and is easy to be placed in any part of the house or office. Yes, it is portable. There is a handle on the device which makes it even more convenient to be taken from one place to another.

What special features does the device have?

The Envion Therapure air purifier has a UV light feature which effectively kills germs and bacteria in the air that lead to various illnesses. There is also a Photo catalyst filter which traps all the harmful VOCs from the air.

Who can benefit from the air purifier?

The purifier comes with a powerful 3 stage filtration system, which delivers clean and pure air in your house. All those who wish to have healthy air to breathe can use this purifier in their homes and offices too. The HEPA filter and the Photo Catalyst filter help to remove several airborne pollutants. It is also useful if you have pets in your house. As the filtration system is capable of trapping pet dander, odor, etc.

How much is the power consumption of the device? Is it energy star rated?

This air purifier consumes only 60 watts (0.5 amperes) of power at the highest setting. Yes, it is energy star rated and therefore, it is energy efficient too.

How much room coverage can it provide?

This Therapure air purifier with UV light is suitable for medium to large rooms of up to 395 sq. ft. You can use it in living rooms, bedrooms, and offices too.

Can this Envion air purifier be controlled with an app?

No, there is no dedicated app for controlling this app. However, there is a very convenient digital display panel on the device which can be used to control various functions.

How much warranty does it have?

This Envion Therapure air purifier TPP440 comes with a 1-year limited warranty from the manufacturer. This applies to defects in material and workmanship, excluding the UV lamp. The period of one year is applicable from the original date of purchase.

What type of filter is there in the purifier?

There is a permanent type HEPA filter and a Photo Catalyst filter in this air purifier. The HEPA filter captures small particles from the air, while the Photo Catalyst filter eliminates VOCs from the air which includes toxic fumes.

How many speeds does it have? Can they be adjusted?

3 fan speeds are there in the purifier; low, medium, and high. You can choose the speed from the digital display panel on the device.

Is it free from ozone?

Yes, it its CARB certified and tested as environment-friendly.

Does it turn off automatically?

Yes. The Therapure TPP440 asthma air purifier comes with a timer feature. You can set the time up to 24 hours. After a preset time, the device will turn off automatically.

Is there a filter change indicator? Does this purifier also have an air quality indicator?

Yes, there is a filter clean indicator instead of a filter change indicator. At prescribed intervals, the indicator light will glow to let you know that it’s time to clean the HEPA filter. No, there is no air quality indicator.

Is it controllable with remote?

No. there is no remote control feature in this air purifier.

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