The dirty solvent is pumped constantly from the filter and re-circulated totally free and clear of Dust that gets trapped within the filter. The toxicity of tetrachloroethylene is "moderate to very low" and "reports of human damage are unheard of despite its large use in dry cleaning and degreasing".[9] Tetrachloroethylene https://socialwebleads.com/story3630267/dry-cleaners-naples-things-to-know-before-you-buy