Sprays can cloak a room for a moment, but stubborn smells bounce back like guests who missed the hint. If you’re after real freshness, tackle the source instead of fogging the air. This guide breaks down smarter, science-backed strategies—from ventilation and filtration to enzyme cleaning and proven absorbents. You’ll find practical steps for kitchens, bathrooms, closets, and pet zones, plus quick wins that make a difference today.