Harm-reducing cigarette filter, preparation methond and application thereof

A cigarette filter comprising six layers;

• wherein the six layers comprise a first layer including filter cotton with an activated carbon, a second layer including five-hole glue, a third layer including filter cotton, a fourth layer including filter particles, a fifth layer including filter cotton with filter fluid, and a sixth layer including a silica gel cover;
• and the first though sixth layers are sequentially arranged from outside to inside in that order;
• wherein raw materials of the filter particles comprise:
• nano-grade diatomaceous earth of 60-70 parts by weight, urea of 5-15 parts by weight, a lemon powder of 5-15 parts by weight, the activated carbon of 3-7 parts by weight with an iodine value of 1100, a nano aerogel of 2-4 parts by weight, nanometer titanium dioxide of 1-3 parts by weight, vitamin C of 1-5 parts by weight, chitosan of 0.5-1.5 parts by weight, a rock candy powder of 1-5 parts by weight, active nano zinc oxide of 1-5 parts by weight, a smoldered and distilled monazite crystal powder of 1-3 parts by weight and maize starch of 1-5 parts by weight;
• and
• wherein raw materials of the filter fluid comprise:
• citric acid of 60-70 parts by weight, urea of 5-15 parts by weight, vitamin C of 5-15 parts by weight, chitosan of 2-4 parts by weight, a distillation solution of smoldered active nano zinc oxide of 4-6 parts by weight, a distillation solution of smoldered monazite of 2-4 parts by weight, an amino acid of 1-3 parts by weight, a nano aerogel of 1-3 parts by weight, purification water of 80-120 parts by weight.