PREMIERONE MUV-403H, MUV7-50DR and MUV7-100TR whole house air purifiers don’t mask odors, they oxidize them with a controlled amount of activated oxygen. Enjoy the fresh smell of clean air after the odors of tobacco smoke, mold, mildew, paint, garbage, litter box, cooking and bathroom odors (plus hundreds more) are eliminated. Some of the most dangerous gases, which may be odor free, including toxins, are also oxidized. Our system produces a safe level of activated oxygen similar to the air you breathe outdoors in nature. If you prefer a non oxidizing air purifier, we offer our MUV-401H, MUV7-50PS and MUV7-100DR models.