Double glazed cleanroom windows are built from three stated parts, and each part should be confirmed in the window schedule. The frame is a purification-grade aluminium alloy frame, chosen for cleanroom walls rather than for general building use. The glazing is held with PVC beading, and beneath the beading sits desiccant that absorbs moisture so the unit resists fogging. The glass is toughened white glass, stated as three to five times the strength of ordinary glass and breaking into blunt small particles rather than sharp shards.
The desiccant detail deserves attention because it is the part that keeps the window usable over time. A double glazed unit without moisture control fogs from within, and a fogged unit cannot be cleaned from the room side. Stating the desiccant under the PVC beading as part of the window specification, rather than leaving it as an assumed detail, lets a buyer check the delivered window against the specified construction. The same discipline applies to the frame: because the stated frame is purification-grade aluminium alloy, any other frame material should be treated as a separate confirmation item, not as a variant of this window.
Windows should be scheduled with the doors and walls around them. A window schedule that lists each opening size, the wall it sits in, and the door schedule for the same wall lets the supplier check frame lines, vision lines, and sealing lines together. Flush installation is treated in a guide on this site, where the installation method is not stated as a standard window specification, and stainless steel frame variants are treated the same way. Those guides explain what must be asked, while this detail page stays within the stated frame, beading, desiccant, and glass facts.
In short, a double glazed cleanroom window on this site is a purification-grade aluminium alloy frame plus PVC beading with desiccant plus toughened white glass. Confirm those three parts per opening, confirm the opening size, and the window order is specified.
- Frame: purification-grade aluminium alloy.
- Beading: PVC beading, desiccant beneath to absorb moisture and resist fogging.
- Glass: toughened white glass, 3 to 5 times ordinary glass strength, blunt small particles on breakage.
- Schedule per opening: size, wall, frame, beading, glass.
- Not standard here: flush installation method and stainless steel frame variants are inquiry items covered in the guides.
Double glazed window parts
| Part | Stated construction | Why it matters |
|---|---|---|
| Frame | Purification-grade aluminium alloy | Cleanroom wall fixing and finish |
| Beading | PVC beading, desiccant beneath | Absorbs moisture, resists fogging |
| Glass | Toughened white glass, 3 to 5 times ordinary strength | Strength and blunt breakage pattern |
How to read the specifications on this page
Dimensions and construction details on this page follow the Lairun product description for the component family shown. Door opening sizes quoted on this site are brochure dimensions: they describe the opening sizes listed in the product brochure, and any non-standard size should be confirmed in the inquiry. Aluminium profile codes are listed by code only; no profile dimension is stated where the product description does not give one. Items that the product description does not specify are marked for inquiry confirmation rather than described as available options, so buyers are not led to assume a mechanism, a load figure, or a material variant that has not been evidenced.
What to put in your inquiry
Send the opening sizes you need, the leaf arrangement, the surface finish you prefer, and the ceiling layout where the components will be installed. State the quantities per size, the site conditions, and the delivery location so the component list can be checked line by line. Where this page lists an item as subject to confirmation, include that item explicitly in your message so it is answered before any order is placed. Please confirm the minimum order quantity and the lead time in your inquiry, because this site does not publish those figures. Certificates are available upon request; please ask for the documents you need and state which project they are for.