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BU280 Universal Base Underlay

Three-piece fleece base with micro-needled aluminium foil that closes off the underside of the canopy; provides very high attenuation without requiring grounding.

Attenuation: 111 dB
Size: 280 × 280 cm (3 pieces)
No grounding required

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Manufacturer: YSHIELD GmbH & Co. KG — Germany. Delivered in the original packaging with the manufacturer's warranty.
SKU: 1785 | EAN / Barcode: 4260103666763

Technical Specifications

Attenuation	111 dB
Dimensions	3 sheets 90 cm width and 280 cm length; Results in a shielding area of 250 cm x 280 cm including 10 cm overlap
Scope of delivery	3 panels BU280 90 cm x 280 cm

Sales Units and Barcodes

Variant	SKU	EAN / Barcode
Standard unit	1785	4260103666763

Application Notes

The sleeping area, where the body rests through the night, is the top priority for shielding. Bed canopies create a Faraday-cage-like protective volume around the bed. The ready-made SAFECAVE series offers a fast and economical solution, while the canopies made in YSHIELD's own sewing workshop are tailored entirely to your choice of fabric and dimensions.

For complete protection: the underside of the canopy must not remain open — close the protective volume from below with the BU280 base underlay laid beneath the bed or the U1S/U2S base mats.

Application Areas

Fast, renovation-free shielding of beds and sleeping areas
Portable protection in rented homes
Protection over cots and children's beds
Temporary protection with the pop-up tent when travelling or in hotels
A retreat space for users with EHS sensitivity

Installation and Application

Pyramid models hang from a single ceiling point, box models from four corner points; the fabric should surround the bed freely on all sides.
The skirt should be tucked under the mattress or meet a floor mat (BU280, U1S/U2S) on the floor — the gap underneath is the most often forgotten hole in the protection.
SAFECAVE tents stand on their own frame; the pop-up model opens in seconds.
Models in groundable fabric can be earthed with GCV/GCR accessories (observing the rules for portable use).

Care and Service Life

The canopy fabric is washed with TEXCARE on a low spin cycle when needed; frequent washing is unnecessary. Closing the entrance after use and keeping the fabric away from sharp surfaces is all it takes.

Frequently Asked Questions

Can I use a phone inside?

Not recommended: an active transmitter inside a shielded volume concentrates its signal inside. Leave the phone outside or switch it to flight mode.

Will I run out of air?

No — the nets are porous weaves and let air and heat pass. SAFECAVE tents have ventilation panels as well.

Why close off the underside?

Your downstairs neighbour's Wi-Fi router or the building's wiring enters the volume through an unprotected base. The BU280 floor mat closes this gap at 111 dB, without needing to be grounded.

Ready-made or custom-sewn?

For standard bed sizes, the ready-made SAFECAVE models are economical; if your bed frame has different dimensions or you want to choose the fabric, custom-sewn canopies (BXP/BXE/BXD) are made to order.

Delivery and Warranty

Products are delivered in the original YSHIELD packaging, with the manufacturer's warranty, by insured shipping throughout Türkiye. Products sold by the metre are cut to the length you order; for project-based orders the delivery schedule is settled at the survey.

According to the manufacturer YSHIELD, its products are used in more than 150 countries by corporate customers including brands such as Adidas, Amazon, Apple, Airbus, ASML, Google, IBM, Mercedes-Benz, Microsoft, Nike and Siemens.