GermGuardian AC4825 VS. Germguardian Ac4100

It’s equipped with a HEPA-Filter that captures 99.97% of allergens and other airborne-pollutants as small as 0.3-microns.

Features an Activated-Carbon-Filter layer that can trap and eliminate cigarette-odor and other odors from pets and cooking.

It’s ideal for use within small-to-medium rooms of up to 167sq.ft. It can also filter and circulate room-air over 4X per hour.

UV-C light technology works with Titanium Dioxide to reduce airborne germs, bacteria and viruses.

The HEPA air filter captures 99.97% of dust-mites while the Pre-filter will help to capture large dust-particles.

Its HEPA Filter captures 99.97% of pet-dander and other airborne-pollutants as small as 0.3-microns.

The HEPA Filter can trap and capture 99.97% of pollen and other allergens as small as 0.3-microns.

It features a Charcoal-filter that eliminates cigarette and cooking smoke coupled with removing common odors within your home.

Uses a HEPA-Filter and UV-C light technology with Titanium Dioxide to captures and eliminate 99.97% of mold-spores.

Its HEPA Filter captures 99.97% of allergens and other airborne contaminants as small as 0.3-microns.

This unit features a low-speed-setting that runs ultra-quiet thus making this device perfect for use in bedrooms and offices which require optimum silence.

Changing the filters is very easy and doesn’t require any tools. In fact, you just have to take the back off by pushing on the clip near the top and pull to reveal the filters.

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

This product earned an Energy Star rating by meeting strict energy efficiency guidelines set by the US EPA.

This device features a simple control-panel with a dial-button that allows you to choose between 3-speeds, a UV-light button and change-filter-indicator.

It features a filter-change-indicator that will blink red to alert you that it’s time to replace the filters.

This unit is very economical because it meets strict energy efficiency guidelines set by the US EPA. In fact, it consumes less power even when running for 24-hours daily.

This model is very affordable yet it covers a reasonable surface-area and uses some of best air-purification technologies.

It features an advanced HEPA Filter and UV-C light technology with Titanium-Dioxide which help to eliminate airborne bacteria, viruses, germs, dust and mold-spores that cause asthma.

All filters need to be replaced every 6-to-8 months depending on the use of the product. The UV-C Bulb can be replaced after a year or when it blows out.

The UV lights emit light at a lower frequency than what is possible to emit ozone hence making this device ozone-free.

It features a simple and compact tower design with a control dial-button at the top, air-inlets at the back and air-outlets at front coupled with a round-stand at the bottom.

Has a dimension of: 7"W x 10.2"L x 21.5"H coupled with a compact, black, tower-shaped body made of durable ABS-plastic.

7-pounds and this makes it very lightweight and easy to move from room-to-room.