HONEYWELL True HEPA Allergen Remover, 465 sq. Ft, HPA300

Product Information

This portable air purifier uses an activated carbon pre-filter that helps capture large airborne particles and reduce odors and VOCs. 3 Some air purifiers, including the Coway Airmega 400, are designed to purify rooms as large as 1,500 square feet. David Priest/CNET Budget In truth, it's a combination of anthropogenic (human-generated) and naturally occurring particles. The former is composed mostly of urban, industrial and automotive emissions of hydrocarbons, nitrogen oxides and combustion byproducts, and the latter is mostly represented by smoke from forest fires, sulfates, soot and matter from volcanic activity around the globe. We are, at all times, breathing in a mixture of it all. Why are people suddenly scrambling to get their hands on the best air purifiers? Poor air quality can lead to a range of health complaints. The problem is particularly acute in our cities: poor air quality outside can cause poor air quality indoors. This extra large room air purifier is equipped with a VOC Sensor that detects the level of VOCs in a room while providing an easy to read visual display to indicate air quality. The Air Quality Indicator is located on the InSight™ Display (only available in the HPA5200, HPA5250, HPA5300 and HPA5350 Series). The VOC Sensor is constantly monitoring the surrounding air. The Air Quality Indicator light will illuminate either green, yellow, or red depending on the level of VOCs detected in the room:

It’s speed makes it ideal for living rooms and bedrooms and it can be wall-hung to save space,” says Matt Thomas of John Lewis. This is because, rather than drawing in air from behind, it draws it from a ring around its front surface. There is also a ring of coloured light all round it, which changes from green to red according to the air quality levels. In smart mode it adjusts its power accordingly. At just 18dB on its lowest setting, the Blue 3210 is technically quieter than a whisper. It’s certainly the quietest we tested as well as one of the most efficient, using about as much energy as an LED lightbulb. Very little compared to other household appliances. Electric heaters and dehumidifiers tend to draw 1,000 to 2,000 Watts but household air purifiers draw just 20-30W, costing you around 2p per hour at current (June 2023) prices. However, these can rise steeply with extra functions: “Those that have heating, cooling and dehumidifier functions will use much more energy than a standard filter unit,” Matt Thomas says. HEPA air purifiers: Standing for "high efficiency particulate air," air purifiers with HEPA technology use a fiberglass filter that traps particles of a certain size out of the air. CleanForce CP-Rainbow: I was impressed by the performance of this unit. It was the fastest air purifier at removing particles at high fan setting, removing all smoke particles in just 1 minute and 45 seconds, which is just incredible. It comes with app control and voice command, an HD LED display for air quality monitoring and color-coded indicators. It offers just a hair fewer features than our winner for best air purifiers for large spaces, but it's considerably more expensive, which is why it's not topping the list.

If you suffer from respiratory conditions like asthma or you have young children in the household, you might be particularly concerned. Dr Jo Barnes is Associate Professor of Clean Air at the University of West England’s Air Quality Management Resource Centre. She explains that very fine particulate matter in the air at home can not only damage your lungs, but organs throughout the body. On top of that, the Kenmore Smart 2300e was one of the most efficient large-size air purifiers we tested and would add less to your monthly energy bill than similar-size units like the Coway Airmega 400s or the EnviroKlenz Air System Plus. It wasn’t unreasonably loud, either, keeping the fan noise below 40 decibels at low and medium settings and topping out at 50.6 decibels at its highest setting. That’s comparable to the noise generated by rainfall.

The biggest impact is on cardiovascular and respiratory health but there is evidence that air pollution can have widespread effects,” she says. “Exposure to air pollution during pregnancy, for instance, is linked to low birth weights and pre-term births. Particulate matter associated with road traffic has also been found on the placenta.” Levoit Core 400s: Our runner up for medium-sized spaces. It's the most expensive medium-sized air purifier we tested but it offers great performance in all test categories. Features include Wi-Fi connectivity, voice control and the VeSync app, which allows you to monitor air quality and control the unit remotely. It's also compatible with Google Assistant and Alexa. If the fan is set to its highest, the Dimplex can wipe out the pollutants and smells in your room in just 15 minutes. Handy if you’ve just been cooking. At its lowest setting, it’s very quiet – albeit not as quiet as the Blueair – and there’s a night mode that turns off all its lights until daybreak. It’s as a purifier that we’re recommending it here. The Purifier Cool Autoreact offers an extremely high level of filtration, with a fully-sealed H13 HEPA system rated to remove 99.95 percent of particles down to 0.1 microns and a carbon filter to remove odours, harmful gases and VOCs (volatile organic compounds – see FAQ section below). Independently tested and AHAM Verifide to circulate and filter room air up to 4.8 x per hour in a 155 sq. ft room. 2 (medium room air purifier)

Coway Airmega 400S: Acceptable performance, very sophisticated filtration system, voice and app control, air quality monitoring via the app and color coded LED indicators on the unit. There are just better options for the price. When operated with the odor reducing pre-filter. It is recommended to always use the pre-filter when operating this air purifier. This product does not reduce or adsorb carbon monoxide gas. Make sure gas appliances are well ventilated. This air purifier for allergies is AHAM (Association of Home Appliance Manufacturers) Verifide meaning that it has been independently tested to ensure its efficiency in reducing smoke, dust and pollen in the suggested room size. (extra large room air purifier) The AHAM assigns a CADR (Clean Air Delivery Rate) Rating that measures the volume of filtered air delivered by an air cleaner. The Honeywell HPA5300 InSight™ HEPA Air Purifier received the following CADR Rating: