# Electric Flosser Starter Kit

Featured in Oprah's Favorite Things 2025! Makes flossing as quick, easy, and comfortable as brushing your teeth. Designed and backed by dental experts, for your pearly whites. Give the gift of Good Oral™.

[Shop Now at Flaus](https://goflaus.com/products/flaus-starter-kit?utm_source=flex_shop)

HSA/FSA Eligible for Qualifying Customers

## How to use your HSA/FSA on Electric Flosser Starter Kit

1. Add to cart and select Flex at checkout
2. Complete a quick consultation
3. Receive your Letter of Medical Necessity
4. Complete your purchase

## See if you qualify for a Letter of Medical Necessity

Our streamlined consultation process will determine if you're eligible for a Letter of Medical Necessity, allowing you to make the most out of your pre-tax dollars.

[Start Consultation](https://goflaus.com/products/flaus-starter-kit?utm_source=flex_shop)

Frequently Asked Questions

If you can’t find what you’re looking for, please reach out to support@withflex.com.

How do I use my HSA/FSA on Electric Flosser Starter Kit?
1. At checkout, select "Flex | Pay with HSA/FSA."
2. Enter your HSA/FSA card details and complete your purchase.
3. Submit your purchase to your HSA/FSA administrator for reimbursement.

What is an HSA or FSA?
Health Savings Accounts (HSAs) let you set aside pre-tax dollars to pay for qualified health expenses. Flexible Spending Accounts (FSAs) allow you to use pre-tax dollars for eligible health expenses.

How do I use my HSA/FSA with Flex?
At checkout, select "Flex | Pay with HSA/FSA." Some products require a Letter of Medical Necessity. Complete a telehealth consultation to confirm eligibility if required.

Why is my HSA/FSA card being declined?
Common reason for declines includes insufficient funds. Confirm your balance with your HSA/FSA administrator.

What if I don't have my HSA/FSA card available?
Select “Flex - Pay with HSA/FSA” as your payment method and enter your credit card information.

What is a Letter of Medical Necessity (LMN)?
A document from a licensed healthcare provider that verifies the need for a product or service, making it eligible to purchase using your HSA or FSA.

Do I qualify for a Letter of Medical Necessity (LMN)?
A clinician will determine your eligibility during a telehealth consultation.

How long is my Letter of Medical Necessity valid for?
Valid for 12 months from the date of issue for eligible purchases during this time.

What do I do with my Letter of Medical Necessity?
Keep it on file for at least three years for potential IRS audits.

Which Flaus products are HSA/FSA eligible?
All products shown in the Flex Marketplace are HSA/FSA eligible, some may require a Letter of Medical Necessity (LMN).