Soft washing is a time-tested successful method of cleaning with EPA-approved chemicals and less water pressure to sanitize and kill growth of any unwanted bacteria and remove pollen from your home. The chemical solution is potent but 100% biodegradable and the low-pressure wash is great for not causing damage to paint and varnish. A soft wash is an environmentally safe alternative to the brute force of a regular power washer that still provides a deep-clean.