You can disconnect from a few wool carpet, and then fire,

1 flameless combustion of pure wool with wool burnt, burn after leaving the fragile and shiny black solid

2 nylon yarn swift curling its burning, burn after the formation of brittle black hard balls,

3 Polyester flameless combustion is bright red and yellow, burn after the formation of a brown solid can crushed fingers

The density and thickness of carpet wool closely linked with the quality of the carpet, the greater the weight per unit area of the velvet carpet texture and appearance of the more lasting usually higher density low pile carpet and needle are more durable.