Choosing equipment for filament drying & post-processing usually comes down to one question: do you need a simple way to dry one spool, or a box that can keep multiple printing jobs moving? The Creality Space PI Filament Dryer Plus takes the second approach, with room for two 1kg filament rolls and feed-through hardware for ongoing printing.
Quick verdict
At USD 79.00, the Creality Space PI Filament Dryer Plus is a focused choice for makers who want dual-spool drying rather than a single-roll setup. Its built-in fan circulates hot air through the chamber, while the 4-inch LCD touch screen is intended to make settings and drying conditions easier to manage. Four filament holes and PTFE pipes also support feeding filament toward as many as two printers at the same time.
The main trade-off is that its design and electrical specification need to fit your workspace. The listed package size is 343 × 226 × 300 mm, and the input voltage is UK 220V 50/60Hz. Those are practical details to weigh before choosing a 160W dryer.
Who it suits
This dryer makes the most sense for a multi-printer workspace, or for anyone who regularly works with more than one filament roll during a project. The two-roll capacity and four feed holes are concrete advantages when the goal is to dry filament while keeping it routed to printers.
It is also a reasonable match for shoppers who prefer on-device controls. The 4-inch touch screen and one-key temperature settings are aimed at straightforward operation, with a listed temperature-control range of 45°C-70°C and heating-duration settings from 0 to 48 hours.
What stands out from the listed details
The dual PTC heating arrangement and circulating fan are the central design features. The product is described as using 360-degree hot-air heating for more even circulation, with the purpose of drying moisture from filament. It lists support for 1.75 mm and 2.85 mm filament diameters, giving the dryer a defined range of spool formats to work around.
The four filament holes are particularly useful if your setup involves routing filament from the dryer directly toward printers. That feature gives the unit a clearer role than simple storage: it is designed to dry and feed filament within the same workflow.
Meaningful trade-offs
The dual-roll format may be more equipment than needed for someone who only plans to manage one spool at a time. The physical package size also makes this less of a minimal-footprint accessory, while the UK 220V input specification is an important regional consideration.
The temperature and duration numbers are useful controls, but they are settings rather than a guarantee that every filament type needs the same treatment. The one-key controls support up to 12 filament types according to the product information, but the unit still requires choosing an appropriate setting for the material being handled.
Creality Space PI Filament Dryer Plus 2 Spools 3D Printer Filament Dryer Box

The strongest reason to choose the Creality Space PI Filament Dryer Plus is its combination of two 1kg spool capacity, four feed holes, and PTFE pipes for a multi-printer workflow. Its clearest limitation is the listed UK 220V electrical specification, which may not suit every workspace.
Bottom line
The Creality Space PI Filament Dryer Plus is a sensible fit when dual-spool drying and direct filament routing matter more than keeping the setup minimal. At $79.00, the decision rests on whether you will use its two-roll design, touchscreen controls, and 0-48-hour heating range. If those features match your printing routine, the unit offers a clearly defined drying-and-feeding setup; if not, its size and dual-roll focus may be unnecessary.