Leaf blower
A leaf blower is analogous to the vacuum cleaner, an electric or combustion engine operated with garden tool for vacuuming leaves. In Germany it is common since the late 1990s.
Unlike other machines apply to these devices no formal emission limit values for noise, however, fully applicable to exhaust .. In a domestic environment it may according to the Machinery Noise Control Ordinance ( 32 Regulation implementing the Federal Pollution Control Act ), § 7 operation in residential areas, only between 9 and 13 clock and 15-17 clock used werden.Sie covered by Article 13 of Directive 2000/14/EC.
In the U.S., these devices are prohibited because of the noise development in some communities since the 1970s.
Operation
Leaves the sucked is collected in a container. Many devices simultaneously crush the leaves, so you can dispose of the 10 - fold amount of foliage with a tank fill at the same volume.
The strength of leaf vacuums lies in the multiplication of labor power, which allows a reduction in personnel costs.
Reverse function
Many leaf blowers can work through air flow reversal as a leaf blower ( Laubpuster ). However, also the adhering dirt and feces is whirled with the leaves, which is spread as an aerosol in the ambient and thus also of the air we breathe.
Disadvantages
In addition to the desired effect of removing leaves and small branches several disadvantages compared to the traditional method of using a Zusammenrechens Laubrechens are to determine:
- Micro-organisms are also eliminated;
- High noise levels, especially for the environment: many of these devices may be used only with noise protections ( earmuffs );
- Especially in dry weather dust is stirred;
- In operation of equipment with internal combustion engines it is inter alia to the emission of harmful nitrogen oxides and hydrocarbons, which spread in the area.