Haverhill Air Purifier VS. Bissell air400 Air Purifier

It features a medical-grade true HEPA filter that captures 99.97% of allergens and other airborne-impurities as small as 0.3-microns.

It features a programmable-timer that can be set for up-to 8-hours. In fact, it’s a great feature for people who want their devices to operate for a specified period of time.

This device is ideal for use within medium-to-large sized rooms up to 538-square-feet. So, you can use it in your bedroom, living-room and office.

This unit uses an Activated Carbon Filter to trap and eliminate cigarette-odor and other household-odors.

It’s designed to purify air in rooms as large as 538-square-feet basing on 4 air-changes per hour.

Its True HEPA Filter can capture and eliminate 99.97% of airborne-allergens including germs and other particles as small as 0.3-microns.

The medical-grade true HEPA filter captures 99.97% of dust-mites and other airborne-allergens.

It can eliminate 99.97% of pet-dander and other allergens within air using an integrated True HEPA Filter.

Its medical-grade true HEPA filter captures 99.97% of pollen and other airborne-pollutants as small as 0.3-microns.

This unit features a highly absorbent honeycomb carbon filter that will help to remove smoke and bad-odor from your house.

Its True HEPA Filter can capture 99.97% of mold-spores thus hindering the growth of mold within your house.

The medical-grade true HEPA filter captures 99.97% of allergens and other airborne-impurities as small as 0.3-microns.

This device can be whisper-silent when operating on the lowest-speed but you will also hear a small white-noise when it’s operating on other higher speeds.

It features a washable thin pre-filter that helps to remove large particles. This pre-filter should be washed or vacuumed every 2 months for optimal filtering condition.

Simply pull the front cover from the bottom until it separates from the unit in-order to access the filters. In fact, removing and re-attaching the front-panel is very easy.

It features smart air quality sensors that continuously monitor pollution-levels while an Auto-mode will automatically adjust the air-purification-speed basing on the pollution-levels in your room.

Has a Night-mode that dims the display panel and switches the fan speed to the quietest speed-setting.

It consumes about 60-watts on the highest speed-setting and less than 10-watts on the lowest speed-setting.

This device is an energy-smart choice because it has been tested and proven to consume less electric-power.

It features digital electronic controls which include; fan-speed-modes, Timer-mode, Sleep-mode, Auto-mode, Power-On/Off-mode and several LED-indicators and sensors.

The integrated indicator-light alerts you when it's time to check the main filters for replacement. To reset the filter-indicator after replacing the filters, hold the "Sleep-button" for 5-seconds.

This device is Energy Star-rated for its efficiency and money-saving operation.

This unit is very affordable yet it’s equipped with some of the most advanced features found on high-end air-purifiers.

It can eliminate symptom-triggering allergens and odors which makes it perfect for use in homes with asthmatic-people.

This Air-Purifier comes with a remote-control that will allow you to operate it from a distance within your comfort.

The True-HEPA-Filter and Activated-Carbon-Filter should be replaced every 12 months or depending on the air-quality-levels within your region.

It features an Automatic-Shutoff function that automatically shuts-off the unit when front cover is removed making this device safe for use in homes with kids and pets.

This device does not produce any harmful ozone making it safe to use in any home-environment.

It features a sleek, white, tower body with a black control-panel that blends well with any décor. Its digital electronic controls are user-friendly and it also features a stand at the base.

Has a dimension of: 20.7"H x 17.7"W x 9.8"D. It also features a sleek white housing made of ABS-Plastic coupled with a black control-panel on top that blends well with any décor.

15.4-lbs and this actually a bit heavy to carry from room to room.