How Do Electric Air Fresheners Work?
The air freshener is a godsend for many a homeowner who has had to entertain surprise guests. They are a common fixture in offices and washrooms in commercial buildings. The automation bug has caught on in this niche as well and electric air fresheners that dispense their scents at regular intervals in preset doses are becoming increasingly common.
You may have been enjoying the whiff of freshness dispensed by such a unit already without realising it – these compact, unobtrusive washroom accessories may be placed innocuously out of the way while not detracting from their efficiency.
But how do they actually work their factory magic?
The Mechanism of Electric Air Fresheners Decoded
The function of an air freshener is distinct from that of an air purifier; whereas the latter has a relatively complicated role to fulfil by processing air through a filter and trapping particles that may be harmful or malodorous, an air freshener simply acts as a masking agent for scents that may already be present in an area.
In the case of an electric air freshener, power is required to control a certain aspect of its operation. Most commonly, this is the automatic dispersal of the pleasing odour into the air. This process is generally not a constant but a time-controlled procedure.
There are three main reasons to avoid the constant-use scenario:
- So visitors to the area do not become inured to the scent through its overuse.
- To lengthen the life of the air freshener.
- For greater energy efficiency.
The common settings of air freshener dispenser are one minute, ten minutes and thirty minutes, and may be adjusted to your needs and the prevailing conditions. The type of freshener block used may also affect outcomes.
Advanced Features of Electric Air Fresheners
Besides being time-controlled, more advanced electric air freshener models may also offer the ability for activation under preset conditions of light or motion. These units will incorporate light and motion sensors respectively.
In either case, the electric current serves to power the mechanism that releases the scent of refill. Certain electric models may also work on the basis of heating a solid cake or block of encapsulated scent. The heat causes the block to sublime, thus releasing its scent into the air.
Electric air fresheners may also incorporate the ability to cycle the ambient air. This feat is achieved through the use of a basic air pump that channels air into and out of the unit as the scent is released to maximise the effective working radius of the unit.
