Canned air uses a liquid propellant and can leave a residue if not used with caution. To avoid any problems hold the can perfectly level and spray for 3-5 seconds to ensure that any propellant or debris is expelled from the nozzle. Detectors should also be cleaned with the AlcoPads occasionally to remove any collected debris. Allow detector to air dry before use. To avoid this use splice bushings with metal or ceramic alignment sleeves only.
Dirt is harmful to fiber optic connectors.
Touch the ends of the connectors with fingers. Leave connectors without dust caps. Never look into a fiber optic cable. Harmful optical radiation may be present. While the possibility is very remote, permanent eye damage may result.