High Volume Low Speed Hvls Fans

OSHA: Section III, Chapter 2, Subsection V of the OSHA Technical Manual, "Recommendations

for the Employer: Temp should be maintained “in the range of 68-76° F or (20-24 °C)"

https://www.osha.gov/dts/osta/otm/otm_iii/otm_iii_2.html

The study shows that productivity drops by as much as four per cent per degree when

temperatures rise above 27 degrees Celsius (80 degrees Fahrenheit) in workplaces

requiring manual labour,the researchers looked at data from almost 70,000 plants

across India.

HVLS VS NORMAL FANS

HVLS fans can help increase productivity by covering a large area with low energy consumption, low

noise feature and high air volume.

HVLS Fans

Normal Fans

Increase productivity.

Single fan covers large area.

Low power consumption.

Less productivity.

Need many fans to cover same area.

FEATURES

Energy efficient.

Not energy efficient.

Small in size and light in weight.

Large and heavy.

Low noise.

Loud noise.

Simple structure.

Complex structure.

Frequency modulation width (0~50HZ).

FM narrow (25~50HZ).

Direct drive motor maintenance free.

Maintenance required (Change seals,

add gearbox oil).

Possible issue with leakage.

No leakage.