User Guide

The Gtech HyLite has a low power consumption.
Bag capacity and compression of debris
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Simulation home debris used in test; debris compressed up to 3 times bag’s volume.
There is no specific IEC standard that covers debris compression in a bin, so we’ve followed the method
outlined in the IEC standards (62885-2; 5.7 – maximum usable volume) to measure uncompressed capacity.
Using these standards, we established that the HyLite bag has an uncompressed volume of 0.3L.
To establish debris compression, we used a representative simulation house dirt in this test (as per IEC 62885-2;
7.2.2.3) – we have also run user trials to see what types of dirt average customers pick up from around their
homes. We then use a mixture of hair, fine dust, such as talc, sand, loose tea, and a natural fibre called Kapok
(like teddy bear filling) to replicate this dirt. By doing this, it makes the test repeatable and the same type of
material is picked up during each test. We made up bundles of these types of debris, blended them together
and spread them out across carpet. Using a fully charged HyLite, we vacuumed up the dirt and continued
replacing the batches until the HyLite physically couldn’t lift any more dirt.
We emptied the bag out into a measuring cylinder, threaded a compressed airline through a hole in it and
sealed it all. We then sent air into the cylinder for 60 seconds, which decompresses the dirt and brings it back to
its natural state (how it was before the HyLite compressed it). We did this repeatedly to ensure our results are
accurate. On average, the HyLite actually lifted up to 1L (0.9L on average) of dirt despite its 0.3L bag, proving it
can hold up to 3 times its volume of dirt.
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Source: internal data, 2019 – amount may vary depending on house size and amount of debris.
We rigorously tested the HyLite’s bags before we launched this product. Our internal tests found that, based on
an average cleaning schedule, households would use 7 bags per year.
This is worked out by taking data from AirRam users’ battery packs that had been used for over 3 years as the
primary vacuum cleaner. An average amount of time spent cleaning per week was then established, based on
real Gtech customers. Based on the HyLite’s compression factor, the typical amount of debris applied per
square meter of flooring and the average UK home area, we calculated that just 7 bags are needed per year in
average households. We sell our HyLite replacement bags in packs of 15 – this is 2 years’ worth of bags. By
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Power Consumption (Watts)