So called \u201cstick vacuum\u201d cleaners are increasingly popular as THE go-to cleaning tool for most any cleaning chore. By combining the virtues of a handheld vacuum cleaner with a full length tube (the stick part) sporting a motorized brush head at its end, you have a 2-in-1 upright\/handheld that can tackle everything from vacuuming whole rooms to vacuuming car interiors, and is great for those hard to clean places like stairs --perhaps the trickiest place to vacuum whether carpeted or not. The Dibea F20 Max is just such a cordless stick vacuum with a high efficiency motor and an advanced filtration system. The design and appearance of the F20 Max looks very much like the Dyson V11 (hard to say who was first or who copied who), but at about half the price, and even still it\u2019s not cheap. GR\u2019s Best Vacuum for Stairs buyer\u2019s guide is a good resource when evaluating the Dibea F20 Max and comparing it to other alternative solutions.\r\n\r\nWhy We Like It - Dibea F20 Max\r\nThe Dibea F20 Max is a cordless \u201cstick vacuum\u201d design that doubles as a handheld vacuum, with 3 power modes, a motorized and lighted brush head, and a highly efficient filtration system. Good for vacuuming stairs, furniture, floors, cars, and wherever else you need to clean.\r\n\r\nPower\r\nThe Dibea F20 Max is powered by a 29.6V lithium ion battery driving a 400W digital motor, with 3 selectable speed settings providing strong fade-free power. The F20 Max uses a brushless motor which is efficient and lasts longer than a regular DC motor. At 28kPa the suction power of the F20 is strong at maximum speed. There are 2 recognized ways of measuring suction power --AW (Air Watt) and kPa (kilopascal)-- with kPa being the lesser used specification. Comparisons are challenging when one brand uses AW and another kPa, and converting a kPa value to AW is too much math for a review, and anyway both measurements are a somewhat imprecise reflection of true performance. A cordless stick vacuum will usually always have more suction power than a smaller handheld vacuum. The aforementioned Dyson V11 claims suction power of 185 AW (in boost mode) whereas a Black+Decker Max Flex has a suction power of 24 AW. What\u2019s it all mean? The F20 produces equivalent suction to other stick vacuums (with a slight edge to the Dyson).\r\nSpeed \/ Efficiency\r\nSome users of the Dibea F20 Max complain in reviews that the lower speeds reduced the efficiency of the F20 so much that they\u2019d have to vacuum an area over and over to get it clean. Hence always running the F20 on its highest speed was required, but that ate up battery life. The motorized brush head of the F20 has LED lights to illuminate the floor area that you\u2019re vacuuming. The F20 also has a motorized mini brush head (without lights), a crevice tool, and a 2-in-1 bristle brush. The mini motorized brush is good for stairs and such --running the F20 as a handheld (instead of as a cordless stick vacuum). The larger motorized brush head is more like a foam brush than a bristle brush, which some users find problematic depending on what they\u2019re cleaning. The F20 has a cyclone filtration system that claims to remove dust particles as small as 0.3 microns using a washable filter. That\u2019s pretty small and complies with the HEPA standard, although the F20 has no official certification and may therefore not provide sufficient allergen protections if you\u2019re an allergy sufferer.\r\nBin Capacity \/ Maintenance\r\nThe Dibea F20 Max has a 17 oz. bagless bin capacity which sounds small, but is comparable to other stick vacuums, and big enough for most jobs without having to stop and empty it. The bin is translucent so you can see the contents and empty it when it becomes full. Keeping the bin from becoming too full is key to optimizing the F20\u2019s performance, but emptying it isn\u2019t as easy as other cordless vacuum cleaners, and while the bin is removable for washing, putting the F20 all back together is kind of challenging. Thoroughly cleaning the upper section of the canister requires using tools (screwdriver or stick to dislodge crud). The charger for the F20 is a \u201cwall wort'' style that plugs into an AC outlet, and then connects via a wire to the battery of the F20. The battery can be removed from the F20 when it\u2019s charging, e.g., if you have 2 batteries you could round-robin using one while the other one is charging. The F20 comes with a wall mount for easier storage, however the wall mount does not have an integrated charger.\r\nDurability\r\nThe Dibea F20 Max is made of durable materials, but the build quality isn\u2019t bullet proof. Some users noted their F20 suffered from shortened battery life after some period of use (experiences varied from weeks to months to years). Others reported the F20 motor overheating and shutting down when using the highest speed. There is no apparent single point of failure or chronic problem based upon user comments. While Dibea backs the F20 Max with a 12 month warranty, access to customer support via email was cumbersome according to some users.\r\nValue\r\nThe Dibea F20 Max is representative of several new technology cordless stick vacuum cleaners that are similar to, and patterned after Dyson models. The Tineco A11 and the Tineco Pure ONE S12 are a couple of other examples. Some might call these \u2018knock offs\u2019 but they\u2019re definitely not inexpensive copies, yet nevertheless certainly not as much $ as the Dyson. To give this some perspective the Dibea is maybe equal to a car payment, whereas the Dyson is equal to a month\u2019s rent. If you\u2019ve got the dough you\u2019ll likely get more durability and longer life the more you spend. If on the other hand you\u2019re more budget conscious, then the Dibea F20 is a reasonable alternative despite some downsides.\r\nDibea F20 Max Wrap Up\r\nThe Dibea F20 Max is a general purpose cordless vacuum cleaner that\u2019s convertible into a handheld cordless vacuum that\u2019s good for vacuuming difficult to clean places such as stairs. The familiar\u00a02-in-1 stick vacuum design at a more affordable price point.