Are plastic dryer vents safe? No, never 100% Get Free Quotes Today! Question: Are plastic dryer vents safe? Top Answer (100% of 3 votes): No, never. Answer: No, never Explanation: Plastic is very flammable. Masters Touch Home Services Answer: No, never Explanation: flammable never use Apex Appliance & Dryer vent cleaning Get Free Quotes Today! Find Local Pros Free Dryer Vent Installation Cost Estimates Related Questions Do dryer vents come in different sizes?Top answer: No Do dryer vent booster fans work?Top answer: Yes, always Can my dryer vent through the roof?Top answer: In some cases Can a dryer vent into the attic?Top answer: Never How Much Does it Cost to Install a New Dryer Vent?