A floor can look clean across the center and still appear unfinished at the edges. Dust, splash marks, fine debris, and residual moisture often remain where the cleaning head cannot reach closely enough, especially along walls, baseboards, and cabinet lines. That boundary area is where GapFree™ makes the biggest difference.

What is GapFree™?
GapFree™ is Dreame’s intelligent edge-cleaning robotic arm technology for wet dry vacuums.
It is built to address one of the most visible limitations in floor washing: the gap that can remain between the cleaning head and the edge of the floor. Traditional designs may clean the open area well but still leave a strip of dust or moisture at the front edge or along wall lines.
GapFree™ changes that by using an AI-powered robotic arm that anticipates the edge and descends to reach it more closely. On H15 Pro Heat, GapFree™ works with dual-edge brush technology to support triple edge cleaning and reduce the front, left, and right cleaning distance to as little as 0mm* for dust removal in testing.
The easiest way to understand GapFree™ is as an adaptive edge-reaching system that closes the gap between the cleaning head and the floor boundary.
0mm*: The distance between the wall and the front, left, right sides of the brush can be reduced to 0mm for dust removal, based on GTT Surface Cleaning & Air Treatment Laboratory. Actual use may vary.
Why does GapFree™ matter?
Edge cleaning affects how complete the final result feels.
The difference is most noticeable in kitchens, along baseboards, beside cabinets, and in tighter hard-floor areas where residue tends to collect at the edge. Even when the main floor looks clean, leftover debris or visible moisture near the perimeter can make the result feel unfinished.
That is why GapFree™ matters. It is designed not only to reduce the front gap left by earlier designs, but also to improve the finish the machine leaves behind. A system that reaches closer but leaves more moisture still creates extra cleanup concerns.
How does GapFree™ work?
At a high level, GapFree™ works by using an AI-powered robotic arm that predicts edge approach, descends quickly, and helps the cleaning head maintain closer contact with the floor boundary during operation.
1. GapFree™ anticipates the edge ahead
Before the arm lowers, GapFree™ uses AI-based prediction to recognize that the vacuum is approaching an edge zone that needs closer reach.
This predictive behavior matters because edge cleaning happens quickly. The system needs to react before the missed strip appears, not after.
2. GapFree™ lowers in just 0.2s*
After the vacuum is pushed forward, the GapFree™ AI DescendReach Robotic Arm lowers to reach dust and debris in just 0.2 seconds.
That fast response helps the machine adapt quickly during real cleaning movement instead of making the user pause or reposition repeatedly. It also helps the cleaning experience feel smoother and more continuous.
0.2s*: The time for the robotic arm to lower and reach floors once you glide the brush forward and stop, based on our in-house lab data.
3. GapFree™ reduces the front gap and supports triple edge cleaning
Once lowered, GapFree™ helps bridge the front gap left by earlier designs. Compared with previous models that left a 0.79 in (2 cm) front gap, GapFree™ is designed to reduce the front cleaning distance significantly.
On H15 Pro Heat, GapFree™ works with dual-edge brush technology to deliver triple edge cleaning, helping the front, left, and right sides of the brush reach as close as 0mm to the wall for dust removal in testing.
This is one of the most important parts of the technology. GapFree™ is not only about reaching a little farther. It is about changing the geometry of the cleaning result so the machine can clean more completely where fixed designs leave space behind.
4. GapFree™ stays in firm contact during backward movement
Whenever the vacuum is pulled backward, the lowered robotic arm maintains firm contact with the floor using its scraper.
That ground contact matters because it helps the cleaning head manage residual moisture more effectively during the return motion, rather than simply lifting away and leaving water behind.
5. GapFree™ helps leave nearly 0 water stains
Because the robotic arm stays engaged during the backward pass, GapFree™ is designed to leave nearly 0 water stains* after one push-and-pull round.
In testing, the average residual water stain level was around 0.01g. That is an important part of the overall experience, because edge cleaning should not only reach closer. It should also leave the floor looking cleaner and drier when the pass is finished.
Nearly 0 water stains*: In one push-and-pull round, the average residual water stains are around 0.01g, based on TÜV Rheinland.
Where does GapFree™ help most?
GapFree™ is especially useful in rooms where edge detail matters.
Along kitchen cabinets and baseboards
These areas often collect splash marks, crumbs, dust, and sticky buildup right at the boundary line. GapFree™ helps the cleaning head reach more closely along those visible edges.
Around walls and room perimeters
Perimeter residue is often what makes a freshly cleaned floor still look incomplete. By reducing the cleaning gap, GapFree™ helps improve the finish around the edge of the room.
In tighter hard-floor spaces
Narrow paths, utility areas, and bathroom edges often make it easier to notice where the brush did not fully reach. GapFree™ helps reduce that missed strip.
In homes that want a cleaner-looking finish
Some technologies improve cleaning power. GapFree™ improves precision. It is especially relevant for users who care about the details that make the finished floor look more complete, including edge reach and lower residual water marks.
How does GapFree™ fit into the full Dreame cleaning experience?
On Dreame wet dry vacuums, GapFree™ works as part of a broader system that combines edge precision with strong washing, suction, self-cleaning, and maintenance support.
For example, H15 Pro Heat uses GapFree™ AI DescendReach Robotic Arm to reduce front gaps to 0mm for dust removal in testing and support triple edge cleaning with dual-edge brush technology, paired with ThermoHub™ 100°C (212℉) immersive hot water self-cleaning for all-round floor maintenance. That edge-cleaning precision becomes even more meaningful when it works alongside the rest of the wet dry cleaning system.
In that kind of full-system design, edge cleaning is not isolated from the rest of performance. Better edge reach needs to work with stable floor contact, water control, drying performance, suction strength, and overall handling. GapFree™ represents the precision side of that experience, helping the machine clean more completely where missed strips and leftover water are easiest to notice.
Which Dreame products feature GapFree™?
GapFree™ appears on select Dreame wet dry vacuums.
Because product availability, specifications, and feature combinations can vary by model, region, and release cycle, the best way to confirm whether a current Dreame product includes GapFree™ is to check the latest product page and product specifications directly on the Dreame website.
When comparing models, it also helps to look at GapFree™ alongside related systems such as suction, self-cleaning, drying, roller design, and overall edge-cleaning structure. That gives a clearer picture of how each wet dry vacuum is designed for different cleaning priorities and floor layouts.
Conclusion
GapFree™ is Dreame’s AI DescendReach Robotic Arm technology for select wet dry vacuums. It is designed to reduce front gaps, support triple edge cleaning, and leave nearly 0 water stains for a more complete floor-washing result.
The simplest way to understand GapFree™ is as a fast, intelligent edge-reaching system. By anticipating the edge, lowering in just 0.2 seconds, and maintaining close floor contact during cleaning, GapFree™ helps wet dry cleaning reach closer and finish cleaner where fixed designs are more likely to leave something behind.
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