Privacy Policy

1. Information We Collect

The PFT Calculator is designed with privacy as a core principle. We do not collect, store, or transmit any patient data or personal health information entered into the calculator. All calculations are performed locally in your web browser.

Data We Do NOT Collect:

• Patient demographic information (age, sex, height, weight)
• Spirometry test results (FEV1, FVC, PEF values)
• Clinical parameters or smoking history
• Calculation results or interpretations
• Any personal health information (PHI)

2. Data We May Collect

Anonymous Usage Analytics:

• Anonymous website usage statistics
• Browser type and version
• Operating system information
• Page views and session duration
• General geographic location (country/region level only)

This anonymous data helps us improve the calculator's performance and user experience. No personal information is collected through analytics.

3. Local Storage

The calculator may store your preferences (such as preferred units or language settings) locally in your browser. This information never leaves your device and can be cleared by deleting your browser data.

4. Cookies

We use minimal, essential cookies only for:

• Remembering your language preference
• Basic website functionality
• Anonymous analytics (if enabled)

No tracking cookies or third-party advertising cookies are used. You can control cookie settings through your browser preferences.

5. Data Security

Since no patient data is transmitted or stored on our servers, there is no risk of data breaches involving personal health information. All calculations occur within your secure browser environment.

Our website uses HTTPS encryption to ensure secure communication between your browser and our servers for any non-patient data transmission.

6. Third-Party Services

We may use third-party services for:

• Website hosting and content delivery
• Anonymous analytics (Vercel Analytics)
• Error monitoring and performance optimization

These services do not have access to any patient data entered into the calculator.

7. HIPAA Compliance

While our calculator can be used in HIPAA-covered environments, we are not a Business Associate as we do not receive, store, or process any protected health information (PHI). All patient data remains under your control and within your secure environment.

8. International Users

Our calculator is designed to comply with international privacy standards including GDPR. Since no personal data is collected or processed, most privacy regulations regarding personal data do not apply to our service.

9. Your Rights

Since we do not collect personal data, there is no personal information to access, modify, or delete. You maintain complete control over any data you enter into the calculator.

10. Changes to Privacy Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated revision date. Continued use of the service constitutes acceptance of any changes.

11. Contact Us

If you have questions about this Privacy Policy or our privacy practices, please contact us through our website contact form.