Blueair Classic 205 VS. KOIOS Large Air Purifier

It features a patented HEPAsilent technology filter that uses electrostatic and mechanical filtration to remove airborne-irritants that cause allergies.

You can use the Blueair-Friend-App to choose when to you want your air purifier to run on any given speed.

It uses an optional SmokeStop carbon activated filter to remove cigarette-odor and other VOCs (gases) from your house in-order to provide you with fresh air.

It designed for use in small-to-medium rooms between 200sq.Ft. and 300sq.ft. It also features air-outlets at the front & air-inlets at the back section.

This device uses patented HEPAsilent technology to capture 99.97% of airborne particles like; germs with sizes of up to 0.1-microns in-order to provide clean-air.

It uses a HEPAsilent-filter to capture 99.97% of airborne particles down to 0.1-microns including; dust-mites. In fact, it has a Dust-CADR of 340m3 per hour.

It uses patented HEPAsilent technology to quietly capture 99.97% of airborne particles including pet-dander so that you can live comfortably with pets.

It uses a HEPA-filter to quietly remove 99.97% of airborne-pollutants like; pollen thus reducing on allergic-cases within your home.

It uses a SmokeStop-filter that provides an extra-level of activated carbon filtration so as to remove smoke within your house and other VOCs (gases).

It uses HEPAsilent technology to capture 99.97% of air airborne pollutants including mold. In fact, with regular use of this device you won’t see any mold.

It uses HEPAsilent technology which combines an electrostatic charge and mechanical filtration to effectively trap and remove airborne irritants that cause allergies and hay fever.

It features whisper quiet operation in-order to allow you sleep easier without disruption. In fact, this unit features whisper-silent filters that ensure high airflow efficiency.

The filters are very easy to replace but you should remember to always turn-off/disconnect the unit from the power-supply before changing filters.

It features a Night-Mode that allows it to operate silently without emitting any light thus making it perfect unit for use when sleeping or reading.

This unit uses 20-watts on speed-1, 60-watts on speed-2 and 80-watts on speed-3. This actually makes it very energy efficient and economical.

Its Energy-star rated for best in class energy-efficiency because it uses between 20-to-80 watts when under operation.

This device features touch buttons on the control panel located under the flip-up lid but you can also remotely control it via the Blueair-Friend Mobile-app.

Has a filter-replacement-reminder that lights orange to let you that it’s time to change filters. You can reset it by pressing down for 5-seconds.

It’s very economical because it uses 20-watts on the lowest-speed and 80-watts on the highest-speed. Its even Energy Star rated for saving power.

It’s affordable compared to other air-purifier brand with similar advanced features. In fact, it will work perfectly for people on budget.

It uses patented HEPAsilent technology to capture 99.97% of airborne particles that cause asthma and other allergies which makes it perfect for use by asthmatic-people.

It’s compatible with Amazon-Alexa in-order to facilitate for remote voice-control while at home. Its also compatible with other smart-home-systems like; IFTTT.

This device can be remotely controlled via the Blueair Friend app installed on your Smartphone but you need to connect both devices on a Wi-Fi network.

According to the manufacturer, both HEPA and SmokeStop filters should be replaced after 6-months of usage or depending on the air-quality of your region.

It features a child-lock feature that regulates your ability to control the air purifier unit via the control panel.

Its certified by the California Air Resources Board for ozone-free emissions. This implies that it won’t give-off any gases that affect the ozone when operating.

Its features a tower-design with a white/grey gloss finish to the outside of its steel frame. Additionally, it’s impact-resistant and can be easily wiped clean.

It features dimensions of 21-H x 17-W x 8-D inches. (533 x 432 x 209 mm). It also features a tower-design with control-buttons hidden under a lid.

It features a weight of 10kgs (22-lbs) and this makes it easy to move around your house to achieve great air-purification results.