Snow
The two main categories of snow are falling snow and laid snow. There is also the blizzard. All three are frequently required for studio and location work.
In the studio the materials used must be non-toxic and fire resistant; outdoors the laid variety must adhere and not blow away; it must also be kind to trees and grass.
Because of its excellent visual qualities, industrial salt is sometimes used for laid snow, but should never be employed where it would corrode the wheels of camera dollies or metal-work, or where it would kill vegetation.
Certain powder-filled fire extinguishers may be sprayed around to whiten rough ground or areas of concrete or asphalt.
Fire foam generated by commercial equipment is often used to cover large areas ...
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