opakovaně použitelný rámeček na meltblown filtr nebo nanotextilii
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Features
replaceable filter, change in a minute
no sterilization, always new✨ clean filter
excellent breathability, maximizing the area for air permeability
low weight 19 g
low price for a filter with bacterial filtration efficiency (BFE 95%) for CZK 3.40, nanotextile Nanotex (filtration up to 93% at 300 nm aerosol particles) for 12.25,-Kč
easy flat print with nylon on conventional FDM printers 40 – 60 minutes
waste minimization🌳
recycling used straps from one time respirator use
Nanoframe eliminates adhesion of filter to nose, mouth and cheeks during inhalation
perfect fit factor evaluated positively by people with glasses that do not mist
using great Czech products from TUL Liberec
available in two sizes for adults and children, the touch with the filter is pleasant
great for outdoor activities: bike, motorcycle, etc., the filter protects against dust and dirt during any activity
Assembly and print
Printing
Nylon filament PAJet 160, HB 90°C, HE 240°C. 3.64 meters, 9.89g, 56 minutes. First layer 0.2 mm, further layers 0.3 mm. 100% infill.
Nylon flows and tends to peel off, so I recommend gluing plain office paper to the HB with paper glue. Printing directly on paper yields best results, after printing submerge the printing sheet in water for some time, the print than comes off easily. If you are going to print directly on HB using some kind of glue, I recommend a brim of at least 3 mm.
Cut your filter to a size for Nanoframe large: 18 x 20 cm, and for Nanoframe small: 16,5 x 19 cm. Place a Nanoframe on it, and fold the filter over the Nanoframe and fix it with eight clips to the frame.
Then place the top and bottom magnetic sides on right and left to the central side magnet. Create a overlap as the filter folds.
Insert a ring with a magnetic center into the inside so that the filter does not move inside the Nanoframe when inhaling
Fix the nose to the upper packs and attach the rubber bands.
Attachment of clean new filter to Nanoframe:
Removal of contaminated filter from Nanoframe:
about
From the beginning of the pandemic, the goal was to create a lightweight, breathable mask in combination with nanotextiles. In 14 days in the spring of 2020, it succeeded. 3D printing first took place with PLA directly on nanotextile FMPV1900L. However, there was a problem with disinfection and the mask was only for limited time of use.
We heard the demand for a reusable mask, this time with NYLON due to its great resistance. Thanks to availability of various filters and due to the great design, Nanoframe evolved in the end of summer 2020 to be used with a reusable filter.
Michael Lažan
Original design: Petr Bakoš
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