Holmes Small Room HEPA Air Purifier VS. KOIOS Large Air Purifier

Features a HEPA-type-filter that removes 99% of airborne particles as small as 2-microns so that you can breathe comfortably.

Uses an activated carbon filter to remove cigarette-odor and other household-odors within air.

It’s designed for use within small-to-medium sized rooms of up-to 109-square-feet (10ft x 11ft). It also pulls in dirty-air from the front-vents and gives-off clean air at the top-vents.

Its plastic-housing features Microban-protection that guards against microbial-growth of germs, mold & bacteria.

The unit uses a HEPA filter to trap 99% of typical airborne particles including dust-mites.

Its HEPA-filter can trap 99% of typical airborne-particles including pet-dander in-order to improve on the quality and freshness of air within your home.

It uses a HEPA-filter and an optional ionizer to trap and eliminate pollen and other airborne-particles.

It uses an activated carbon filter and an optional ionizing function to trap and eliminate smoke and other household-odors.

Its uses a HEPA type filter to remove up-to 99% of mold and other airborne-particles as small as 2-microns

This unit uses a HEPA-filter to trap 99% of typical airborne-allergens while its optional ionizing function improves on performance.

Select a lower-speed for continued purification with less ambient noise.

You can easily wash and reuse the pre-filter but other filters are replaceable.

Both filters can be easily accessed through a pop-off cover at the front. So, you don’t need any tools or professional-help to change the filters.

It can be set to the lowest speed-setting in-order to provide continuous air-purification with less ambient noise (white-noise) so that you can sleep better.

Its uses 49.5-watts on the highest speed-setting and less than 5-watts on the lowest speed setting.

Its Energy-star rated because it consumes less power even when running on the highest speed-setting. In fact, its maximum energy consumption is 49.5-watts.

It features 2 sliding switch controls for selecting between 3 speed-settings and the other switch for power on/off.

There is a filter change indicator to let you know when it’s time to change the HEPA-type-filter and carbon-filter.

This device consumes less power and its filters are very affordable thus making it very economical.

This unit is very affordable and you should actually acquire it to receive clean and purified air at all times.

Its HEPA-type-filter helps to remove up-to 99% of airborne-allergens down to 2-microns so as to provide cleaner air for asthamtic-people.

The HEPA-TYPE-Filter and Carbon-filter should be replaced once every 3-to-4 months. However, you can rinse the carbon pre-filter well to save some bucks.

Features a slim, dual-positioning design which makes it easy to set on any surface either vertically or horizontally. It also features a compact desktop-design with 2 sliding switches on top.

Has a dimension of: 6.34"H x 13.07"W x 9.72"L. It also features a compact, lightweight and multi-color body made of durable ABS-plastic coupled with 2 control sliding switches at the top.

5.65-pounds which makes it very lightweight and easy to carry and move form room-to-room. It’s also a great choice for travellers.