This bottled smoke powder from Arctic Hayes provides a smoke that can be used to test ventilation, cooker hoods, fireplaces draft with a reliable and simple dispensing system. A small squeeze provides enough smoke for draft detection or negative pressure around a door. Multiple pumps can provide up to 4m (140ft) of smoke. Up to 300 puff per bottle. Eco-friendly way to dispense non-toxic smoke, recyclable container made of recycled plastic. Innovative solution no longer requires an ignition source or flame to generate smoke, just squeeze the bottle and youre ready to test. Suitable for the air balancing industry, the energy conservation industry, smoke and fire prevention, special effects.