Formula 'C' is a fast-acting, water-based carpet flea spray, with a rapid knockdown effect. As well as killing fleas on contact, Formula 'C' also offers long-lasting residual protection, helping maintain flea control for up to 12 weeks. The spray can also be applied to carpets and other surfaces in the home for the effective control of cat fleas or dog fleas.
Formula 'C' is a professional strength insecticide containing cypermethrin at 0.1%w/w and is designed as a surface spray for the control of many insect pests including fleas, cockroaches, moths, ants, and flies.
Formula 'C' is water-based, so providing packaging instructions are followed, it is perfectly safe for use in homes with both children and pets and will not cause damage to any items that would not be damaged by water.
A 1 litre trigger spray will treat an area of approximately 20 square metres.
See also our Flea Treatment Kits, which are supplied with a step-by-step professional advice sheet.