The Knowledge Center

Practical guides to pet odor, allergens, mold and probiotic surface care. Choose a topic below, or explore the latest articles.

Close-up of a linen sofa cushion and wool rug in soft light

The 80% Stat: Why Surface Contamination Matters More Than Air Quality

Up to 80% of indoor allergens and contamination sits on surfaces rather than in the air. Where the number comes from, and why HEPA can't reach it.