A portable white air conditioner or humidifier with a flexible white hose connected to a large window in a bright, modern room with a view of trees and the ocean.


A Better Fit for Your Portable Air Conditioner

A clear, made-to-fit window insert designed to securely connect your portable air conditioner hose. LucentMark is currently in development — join the waitlist for launch updates.

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A white portable window air conditioner with a flexible white hose inserted into an open black-framed window, shown in a modern bedroom setting.


A cleaner solution for windows standard kits don’t fit

Many portable air conditioners come with window kits designed for sliding windows. If you have an awning, casement or wind-out window, getting the exhaust hose properly installed can quickly turn into fabric seals, tape, cardboard or a DIY panel.


LucentMark is developing clear, rigid, made-to-fit window inserts with a secure connection for your portable air conditioner hose — giving you a neater, simpler and removable solution.

How it works

1. Measure your window


Follow our simple measuring guide so we can make the insert to suit your window opening.

2. We make it to fit


Your clear acrylic insert is cut to size and fitted with a secure connection for your portable air conditioner hose.

3. Fit, connect and cool


Install the removable insert, connect your exhaust hose and run your portable air conditioner without the usual makeshift window setup.


LucentMark is currently in development. Final product specifications and ordering options may change before launch.

Why LucentMark?

A black and white line drawing of a square wall switch with arrows indicating push-in wiring directions on the sides and a diagonal line representing a glass plate.

Made to fit

Sized for your window rather than forcing a generic portable air conditioner window kit to work.

Clear and unobtrusive

Rigid clear acrylic keeps the window looking cleaner and lets in more light than cardboard, fabric or opaque panels.

Secure hose connection

Designed to hold your portable air conditioner exhaust hose securely in place, rather than relying on a loose or makeshift connection.

Removable

A non-permanent solution that can be taken out when you no longer need your portable air conditioner.

A modern gray aluminum double-hung window with one panel open, installed in a white wall of a bedroom. A light wood bedside table with a white vase and small plant is visible on the right, and a white curtain hangs on the left.

Casement windows

Hinged on one side and opening outward like a door. LucentMark is developing clear, removable portable air conditioner window inserts for suitable casement windows.

A modern black aluminum casement window with a white frame trim, shown partially open with an outdoor view of trees and sky. The window is installed on a light beige wall in a room setting with a sofa and a plant visible at the bottom corners.

Awning windows

Hinged along the top and opening outward from the bottom, often using a winder or chain mechanism. LucentMark is developing window inserts for compatible awning windows where there is enough clear mounting space around the opening.

A modern black sliding window with a white frame installed on a beige wall, showing a view of green trees and a blue sky outside.

Sliding windows

Opening by sliding horizontally, these are common in many homes and apartments.
LucentMark is also developing inserts for sliding windows and doors, offering a cleaner, more secure and more durable alternative to standard portable air conditioner window kits.

Frequently asked questions

When will ordering open?

We’re currently developing and testing our window inserts.

Will the insert be made to fit my window?

Yes. Each insert is planned to be made to the measurements required for your window, with simple measuring instructions provided before ordering.

Will it work with my portable air conditioner?

Our window inserts are being developed around common portable air conditioner exhaust hose sizes and connections.

Are LucentMark window inserts suitable for rental properties?

Yes — the inserts are being designed as removable, non-permanent solutions that do not require permanent modification of the window.

Where will LucentMark be made?

LucentMark window inserts will be manufactured in Australia and made to order for each customer’s window.

Will you support sliding doors as well as windows?

Yes. Sliding windows and doors are part of the planned launch range alongside suitable casement and awning windows.

Made to order in Australia • Rental-friendly design • Clear, removable window inserts