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As a general rule, you should aim for a humidity between 40-50% to prevent mould growth.. You can try placing open boxes of baking soda around the affected room to absorb odours.

Unfortunately, the Shark IZ251UKT isn’t a freestanding model, as it topples backwards when left standing.This is where the Flexology wand is useful though, as the vacuum does stand up when folded.. Other Design Features.

The IZ251UKT has Shark’s Flexology design.This is effectively a joint in the vacuum’s wand, which you can use to clean under furniture.. There’s also the option of folding the vacuum for storage, which is useful if you want to keep the Shark in a small cupboard.When folded, the vacuum is approximately 70cm tall..

While the Flexology system isn’t something you’ll always use, we think it’s a handy feature when cleaning under low objects.Activating it just requires a single click, then you can snap it back into place when finished, so it’s easy to use and perfect for low sofas, sideboards, or tables.. On a related note, we like how easily everything on the Shark fits together with a satisfying click.

Whether you’re activating Flexology, switching to handheld vacuum mode, or changing tools, the vacuum feels engineered to a high-standard and satisfying to use.. VIEW PRICE.

Shark IZ251UKT Filtration.We’ve written a guide for.

maintaining suction power which may be useful if your vac is losing suction.How Are Air Watts Calculated?.

There are several ways to calculate air watts, but the most common is:.Power in Air Watts = 0.117354 x Airflow (CFM) x Water lift (inches of water).