Chemical Drain Cleaner vs. Comet Powder Cleanser

Materials

• Sodium hydroxide (lye)
• Sodium hypochlorite
• Aluminum particles

Common claims

• Clears clogs fast
• No plumber needed

Concerns / watch-outs

• Highly caustic; can cause chemical burns on contact with skin, eyes, or mouth
• Generates significant heat — can splash and damage pipes
• Creates toxic fumes; never use in enclosed spaces

Notes

One of the most dangerous household products. A drain snake or enzymatic drain cleaner are far safer options for regular maintenance.

Cleaner alternatives

• enzymatic cleaner
• baking soda scrub

Materials

• Calcium carbonate abrasive
• Sodium dichloroisocyanurate (chlorine source)
• Fragrance

Common claims

• Disinfects while it cleans
• Whitening power
• Tough on stains

Concerns / watch-outs

• Contains chlorine-releasing compounds; generates chlorine gas fumes, especially in warm water
• Fragrance in a powder format means inhalation exposure during application

Notes

More abrasive and harsher than Bon Ami. The chlorine component is effective but adds respiratory concerns. Bon Ami or baking soda handle most scrubbing tasks without the chlorine.