Summary

A manual nozzle brush that uses replacement Bambu Labs silicon wiper brushes.

I personally used these which worked well.
https://www.amazon.com/dp/B0DRBZK7RZ?ref=ppx_yo2ov_dt_b_fed_asin_title

Print Settings

Printer Brand:

Longer

                                            <p class="detail-setting printer"><strong>Printer: </strong>                     <div><p>Longer LK4</p></div></p>                                                                                <p class="detail-setting rafts"><strong>Rafts: </strong>                     <div><p>Doesn't Matter</p></div></p>                                                                                <p class="detail-setting supports"><strong>Supports: </strong>                     <div><p>No</p></div></p>                                                                                <p class="detail-setting resolution"><strong>Resolution: </strong>                     <div><p>0.2</p></div></p>                                                                                <p class="detail-setting infill"><strong>Infill: </strong>                     <div><p>10% or higher</p></div></p>

Nozzle Brush