Frequently Asked Questions about High-Speed Hand Dryers
What is a high-speed hand dryer? High-speed hand dryers are devices designed to quickly dry hands using powerful airflow, typically within 10 to 15 seconds. They are often more energy-efficient and hygienic compared to traditional warm air hand dryers.
There are different measurements and standards to specify high speed hand dryers, such as ETL (Energy Technology List) and PCR (Product Category Rules) by eUL (Environment UL). All of Hokwang’s high speed hand dryers are tested based on ETL and PCR for the drying time.
-How do high-speed hand dryers work?-
These dryers utilize a combination of high-velocity air jets and advanced technology to remove moisture from hands. Unlike traditional dryers that rely on warm air, many high-speed models use jet air technology to force water off the hands more effectively.
-What are the advantages of high-speed hand dryers over traditional ones?-
Faster Drying Time: High-speed models can dry hands in as little as 7-12 seconds, significantly reducing waiting time compared to 30-40 seconds for traditional warm air dryers
Energy Efficiency: These dryers consume less energy per use, leading to lower operational costs over time
Compact in size: Most high speed hand dryers have compact motor and casing design which allow more flexibility of commercial washroom design.
Hygiene: Many high-speed dryers feature HEPA filters and antimicrobial surfaces that help reduce the spread of bacteria and maintain cleanliness
Ecohygiene Hand Dryers Are Antimicrobial Effectiveness Tested
We conducted Antimicrobial Effectiveness Test, PM 2.5 Test for Ecohygiene high speed hand dryer. The result shows a hand dryer that is equipped with HEPA filter can eliminate over 99.9% of PM2.5 and over 99.9% of bacteria. It also shows that bacteria on the petri dish decreased rather than spread after using the hand dryer.
-Are high-speed hand dryers noisy?-
While they can be louder than traditional models, many high-speed hand dryers are designed to operate at lower decibel levels, typically ranging from 63 dB to 78 dB
Manufacturers often incorporate sound-dampening features to minimize noise. For example, the HK-JA LdB series from Hokwang’s high speed hand dryer category has quiet operation with MIN 62.8 dB to 68.2 dB MAX @ 1m only.
-What maintenance is required for high-speed hand dryers?-
Regular maintenance includes cleaning the exterior and replacing filters (like HEPA filters) as needed. Some models have drip trays that require periodic emptying to prevent overflow and maintain hygiene.
-Where are high-speed hand dryers commonly used?-
These dryers are ideal for high-traffic areas such as:
• Restaurants
• Airports
• Hospitals
• Schools
• Shopping malls
They are particularly favored in environments where quick and hygienic hand drying is essential
Food factories or clean rooms of technology companies that have strict regulations toward hand hygiene also have high requirements to high speed hand dryers. Brushless motor hand dryers like EcoPure and EcoFast-BL are both suitable in such locations.
-What types of high-speed hand dryers are available?-
High-speed hand dryers can be categorized based on their operation:
• Jet Air Dryers: Use concentrated jets of air for rapid drying.
• Hands-in or hands-under types: The hands-in type usually has narrow hand drying space. The benefit is the air speed will not decrease due to the distance between hands and air outlet, while it makes users tend to touches the hand dryer during drying. Some manufacturers make an alternative hands-in type of hand dryer with larger drying space.
The hands-under type is a common design for both traditional warm air hand dryers and high speed hand dryers. Users simply puts hands under the sensor to activate the hand dryer.
Examples of Hands-In And Hands-Under Hand Dryers
EcoMo is the hands-in type and EcoPure is the hands-under type of hand dryer. Although EcoMo hand dryer is hands-in type, it has advanced wider hand drying space to avoid contact with the machine. EcoPure brushless motor hand dryer, similar to other hand dryers among Hokwang’s product line, is easy and instinct to use.
-How much do high-speed hand dryers cost?-
Prices vary widely based on features and brand. Factors influencing cost include drying speed, energy efficiency, quality, materials and additional hygiene features like HEPA filtration
-Are there environmental benefits to using high-speed hand dryers?-
Yes, they reduce paper towel waste and lower the carbon footprint associated with paper production and disposal. Many models are designed with energy efficiency in mind, further contributing to their eco-friendliness. For example, some of Hokwang’s high speed hand dryers have heater on/off switch. The heater can be turned off if the hand dryer is installed in warmer area to further save the energy.
-Can high-speed hand dryers be installed in any location?-
While they can be installed in various settings, it is essential to consider local electrical codes and the proximity to water sources. Some models are specifically designed for wet environments and require proper electrical safety measures.